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Why is the ice age cycle ignored when discussing climate change?

Yes. Too long a time scale, but solar cycles are more immediate and relevant and wrongly ignored by the UN IPCC and other alarmists scientists. The neglected sun is the achilles heel of the false climate crisis. The peer reviewed research is legion and I will publish some here.It is surely amazing that so many Quora posts including answers here repeat the tired meme that human caused warming is unique because because it is happening so fast. Really. What evidence?Can something be fast that has stopped? Temperatures have stopped rising and the earth is cooling with record lows.Extreme Weather GSM“THE CONTINENTAL U.S. JUST SET IT’S COLDEST-EVER OCTOBER TEMPERATURE, BREAKING THE PREVIOUS RECORD FROM 1917OCTOBER 29, 2019 CAP ALLONThe western U.S. was blasted by a yet ANOTHER brutal Arctic air mass yesterday, Oct 28, with this one delivering the COLDEST TEMPERATURE EVER RECORDED IN THE CONTINENTAL UNITED STATES.Peter Sinks, Utah –east of Logan– broke the Lower-48’s cold temperature record for the month of October on Monday morning with a staggering reading of minus 35 degrees.The area is know for it’s cold temperatures thanks to its high elevation (8,164 ft) as well as its unique topography, said Chicago meteorologist Tom Skilling.“It is a basin a half mile (804.67 meters) in diameter with no outlet, like a large bowl. Cold air collects in the basin on clear, calm nights,” Skilling said. “Very low temperatures can occur there, especially during outbreaks of arctic air in the winter.”The weather station located at the bottom of the sink took the -35F (-37.2C) reading at approximately 6:15AM on Monday morning, Oct 28 — beating-out the previous record low of -33F (-36.1C) set way back in 1917 (just after weak solar cycle 14, which was similar to the cycle we’ve just experienced, 24).Forgive me but I’d like to type it again, the Lower-48 just broke it’s coldest-ever temperature record for the month of October. And in addition, and perhaps even more astonishingly, the record may not even last that long — another all-time low mark is expected to be reached overnight Wednesday.Brutal Arctic air will continue to be funneled southwards from Canada by a dominant meridional (wavy) jet stream flow, which itself is associated with historically low solar activity.“That dip in the jet stream will slowly migrate eastward late in the week taking the colder air with it,” reports the Weather Channel.In neighboring Colorado, record-breaking cold is forecast Tuesday and Wednesday, with the front expected to expand eastward, hitting the Great Plains on Wednesday, the Mississippi and Ohio River Valleys on Thursday, and the East Coast late Friday and into Saturday, according to the NSW — record cold and snow are predicted throughout the vast region.GFS TEMP ANOMALY (C) OCT 28 to NOV 4Observations reveal the lower-latitudes are COOLING, and cooling fast.Yes, far-northern regions like Alaska and the Arctic may-well be warming ‘slightly’ (seen again by those lingering reds and pinks in the above weather map) but quite frankly who cares, no one lives up there, and as NASA succinctly identifies in their Maunder Minimum Temperature Reconstruction Map below — some regions of the planet actually warm during periods of global cooling:Temp change between 1780 (a year of normal solar activity) and 1680 (a year within the depths of the Maunder Minimum) — NASA.And for those concerned by a little Arctic sea ice melt, and the consequences for sea levels, don’t be so ridiculous — at least 90% of the planet’s ice is safely locked up in Antarctica which has been growing for as long as we can tell, comfortably offsetting the comparatively tiny losses observed at its northern cousin.Don’t be fooled by poisonous political ideologies.The cold times are returning to the lower-latitudes –where us humans reside– in line with historically low solar activity.NASA has recently revealed this next solar cycle (25) will be “the weakest of the past 200 years,” and they’ve correlated previous solar shutdowns to prolonged periods of global cooling here.Prepare for the COLD — grow your own.Grand Solar Minimum + Pole Shift”The Continental U.S. just set it's Coldest-Ever October Temperature, Breaking the Previous Record from 1917 - Electroverse“This book by two German scientists, FRITZ VAHRENHOLT and SEBASTION LUNING is a great example of powerful science research demolishing the alarmism view denying the role of the Sun in >400 pages and 1000 references to peer reviewed science papers.The effect of the sun's activity on climate change has been either scarcely known or overlooked. In this momentous book, ProfessorIn this momentous book, Professor Fritz Vahrenholt and Dr Sebastian Luning demonstrate that the critical cause of global temperature change has been, and continues to be, the sun's activity. Vahrenholt and Luning reveal that four concurrent solar cycles master the earth's temperature – a climatic reality upon which man's carbon emissions bear little significance. The sun's present cooling phase, precisely monitored in this work, renders the catastrophic prospects put about by the Inter-Governmental Panel on Climate Change and the 'green agenda' dominant in contemporary Western politics as nothing less than impossible.It is no surprise that the sun is the major contributor to the Earth's surface temperature. However, this book details how the sun changes with time, in terms of electromagnetic energy radiated, magnetic field changes, and coronal mass ejections, and the resultant impact on temperature of the Earth. The result is not a simple variation of "total radiated energy" but also complex interactions such as the Sun's magnetic field shielding the Earth from cosmic rays (radiation from outside the solar system) which in turn cause more cloud cover which reflects sunlight and reduces temperatures.The book is organized with a preface plus nine chapters, four of which are written by guest contributors:(1) It's the sun stupid(2) Climate catastrophe deferred - a summary(3) Our temperamental sun (by Nir Shaviv), Solar forcing and 20-th century climate change(4) Brief history of temperature: our climate in the past (by Nicola Scafetta)(5) Has the IPCC really done its homework? (by Henrik Svensmark), cosmic rays and clouds(6) Misunderstood climate amplifiers (by Werner Weber), mining a treasure trove of old solar data(7) A look into the future(8) How climate scientists are attempting to transform society(9) A new energy agenda emergesAs a retired solar radio astronomer, I appreciate the science in this book and heartily recommend it to the general reader, just ignore the extensive footnotes at the end of each chapter (and which would have been better left to the end of the book). A strong point in the book is the extensive graphs (which are very small on the Kindle) and discussion of climate data gathered over time (100's, 1000's, and even 100,000's of years). This data from the past indicates the possible changes in the future. An interesting note is that the current climate models which focus on CO2 and a static sun are not able to fit the actual past data.The governments of the world are rushing to declare a "climate crisis" in order to justify new carbon taxes (which assume that increased CO2 emissions are causing climate changes). The material in this book should help taxpayers understand the major factors that impact climate and the expected rate of temperature change.German Professor: IPCC in a serious jam... "5AR likely to be last of its kind"P GosselinNo Tricks ZoneMon, 16 Sep 2013 16:59 UTCProf. Fritz VahrenholtAnd: "Extreme weather is the only card they have got left to play."So says German Prof. Fritz Vahrenholt, who is one of the founders of Germany's modern environmental movement and agreed to an interview with NoTricksZone. He is one of the co-authors of the German skeptic book "Die kalte Sonne", which took Germany by storm last year and is now available at bookstores worldwide in English under the title: The Neglected Sun.In Germany Prof. Vahrenholt has had to endure a lot heat from the media, activists, and climate scientists for having expressed a different view. But as global temperatures remain stagnant and CO2 climate sensitivity is being scaled back, he feels vindicated.?”There is a long record of the correlation between changing temperatures and various solar cycles with the 11 year cycle best known and most observed.“Sun follows planets’ rhythmNew study corroborates the influence of planetary tidal forces on solar activityImages: NASA (public domain)“One of the big questions in solar physics is why the Sun’s activity follows a regular cycle of 11 years. Researchers from the Helmholtz-Zentrum Dresden-Rossendorf (HZDR), an independent German research institute, now present new findings, indicating that the tidal forces of Venus, Earth and Jupiter influence the solar magnetic field, thus governing the solar cycle. The team of researchers present their findings in the journal Solar Physics (doi: 10.1007/s11207-019-1447-1).In principle, it is not unusual for the magnetic activity of a star like the Sun to undergo cyclic oscillation. And yet past models have been unable to adequately explain the very regular cycle of the sun. The HZDR research team has now succeeded in demonstrating that the planetary tidal forces on the Sun act like an outer clock, and are the decisive factor behind its steady rhythm. To accomplish this result, the scientists systematically compared historical observations of solar activity from the last thousand years with planetary constellations, statistically proving that the two phenomena are linked. “There is an astonishingly high level of concordance: what we see is complete parallelism with the planets over the course of 90 cycles,” enthused Frank Stefani, lead author of the study. “Everything points to a clocked process.”As with the gravitational pull of the Moon causing tides on Earth, planets are able to displace the hot plasma on the Sun’s surface. Tidal forces are strongest when there is maximum Venus-Earth-Jupiter alignment; a constellation that occurs every 11.07 years. But the effect is too weak to significantly perturb the flow in the solar interior, which is why the temporal coincidence was long neglected. However, the HZDR researchers then found evidence of a potential indirect mechanism that may be able to influence the solar magnetic field via tidal forces: oscillations in the Tayler instability, a physical effect that, from a certain current, can change the behavior of a conductive liquid or of a plasma. Building on this concept, the scientists developed their first model in 2016; they have since advanced this model in their new study to present a more realistic scenario.Small trigger with a major impact: tides utilize instabilityIn the hot plasma of the Sun, the Tayler instability perturbs the flux and the magnetic field, itself reacting very sensitively to tiny forces. A small thrust of energy is enough for the perturbations to oscillate between right-handed and left-handed helicity (the projection of the spin onto the direction of momentum). The momentum required for this may be induced by planetary tidal forces every eleven years – ultimately also setting the rhythm at which the magnetic field reverses the polarity of the Sun.“When I first read about ideas linking the solar dynamo to planets, I was very skeptical,” Stefani recalled. “But when we discovered the current-driven Tayler instability undergoing helicity oscillations in our computer simulations, I asked myself: What would happen if the plasma was impacted on by a small, tidal-like perturbation? The result was phenomenal. The oscillation was really excited and became synchronized with the timing of the external perturbation.”Solar dynamo with an added touchIn the standard scenario of a dynamo, the rotation of the Sun and the complex motion of the solar plasma create a cyclically changing magnetic field. Two effects interact here: the plasma rotates more quickly at the Sun’s equator than at the poles. This leads to the omega effect: the magnetic field lines frozen in the plasma stretch around the Sun and convert the magnetic field into a field aligned almost parallel to the Sun’s equator. The alpha effect describes a mechanism that twists magnetic field lines, forcing the magnetic field back into a north-south direction.What exactly causes the alpha effect, however, is a subject of dispute. Stefani’s model indicates that the Tayler instability is partly responsible for this. The researchers consider the most plausible scenario to be one in which a classic solar dynamo is combined with the modulations excited by the planets. “Then the Sun would be a completely ordinary, older star whose dynamo cycle, however, is synchronized by the tides,” summarized Stefani. “The great thing about our new model is that we are now easily able to explain effects that were previously difficult to model, such as ‘false’ helicities, as observed with sunspots, or the well-known double peak in the Sun’s activity curve.”Besides influencing the 11-year cycle, planetary tidal forces may also have other effects on the Sun. For example, it is also conceivable that they change the stratification of the plasma in the transition region between the interior radiative zone and the outer convection zone of the Sun (the tachocline) in such a way that the magnetic flux can be conducted more easily. Under those conditions, the magnitude of activity cycles could also be changed, as was once the case with the Maunder Minimum, when there was a strong decline in solar activity for a longer phase.In the long term, a more precise model of the solar dynamo would help scientists to quantify climate-relevant processes such as space weather more effectively, and perhaps even to improve climate predictions one day. The new model calculations also mean that, besides tidal forces, potentially other, hitherto neglected mechanisms would have to be integrated into the solar dynamo theory, mechanisms with weak forces that can nevertheless – as researchers now know – have a major impact. To be able to investigate this fundamental question in the laboratory, too, the researchers are currently setting up a new liquid metal experiment at HZDR.”What Drives The Solar Cycles? German Scientists Believe They’ve Found The AnswersTropical storms in the Pacific are strongly influenced by solar activity fluctuations and ocean cyclesBy Dr. Sebastian Lüning and Prof. Fritz Vahrenholt(German text translated/edited by P Gosselin)Tropical storms have plagued humans since the start. Today we will shed some light on the activity pattern of the Pacific region. Toomey et al. 2016 examined tropical storm activity in the Ssouth Pacific for the past 3000 years.Conclusion: During the period from 2600 to 1500 years before today storms were at their worst. What follows is an excerpt from the paper’s abstract:Our companion record of tropical cyclone activity from Tahaa suggests major storm activity was higher between 2600-1500 years B.P., when decadal scale SPCZ variability may also have been stronger. A transition to lower storm frequency and a shift or expansion of the SPCZ [South Pacific Convergence Zone] toward French Polynesia around 1000 years B.P. may have prompted Polynesian migration into the central Pacific.”In the Western North Pacific it was discovered that cyclonic storm activity was surprisingly strongly coupled to the Atlantic Multidecadal Oscillation (AMO). In February 2018 Zhang et al. reported:Dominant Role of Atlantic Multidecadal Oscillation in the Recent Decadal Changes in Western North Pacific Tropical Cyclone ActivityOver the 1997–2014 period, the mean frequency of western North Pacific (WNP) tropical cyclones (TCs) was markedly lower (~18%) than the period 1980–1996. Here we show that these changes were driven by an intensification of the vertical wind shear in the southeastern/eastern WNP tied to the changes in the Walker circulation, which arose primarily in response to the enhanced sea surface temperature (SST) warming in the North Atlantic, while the SST anomalies associated with the negative phase of the Pacific Decadal Oscillation in the tropical Pacific and the anthropogenic forcing play only secondary roles. These results are based on observations and experiments using the Geophysical Fluid Dynamics Laboratory Forecast-oriented Low-ocean Resolution Coupled Climate Model coupled climate model. The present study suggests a crucial role of the North Atlantic SST in causing decadal changes to WNP TC frequency.”In September 2017 Takahashi et al. had assumed that here sulfate aerosol emissions may have played a role. The explanation of the AMO presented by Zhang et al. probably makes more sense because ocean cycles are gaining greater importance as a climate factor in the attribution by observed natural climate variability.Next we go on to Australia. Dowdy 2014 showed that the frequency of tropical storms had declined. Moreover it appears that El Nino is a variable. This is also confirmed by a chart of the Australian Bureau of Meteorology:Graph showing the number of severe and non-severe tropical cyclones from 1970-2017 which have occurred in the Australian region. Severe tropical cyclones are shown here as those with a minimum central pressure less than 970 hPa. Source: Bureau of MeteorologyHaig & Nott 2016 investigated the development of Australian tropical storms over the past 1500 years and here found an impact by solar activity fluctuations:Solar forcing over the last 1500 years and Australian tropical cyclone activityAccurate seasonal and decadal predictions of tropical cyclone activity are essential for the development of mitigation strategies for the 2.7 billion residents living within cyclone prone regions. The traditional indices (Southern Oscillation Index and various sea surface temperature indices) have fallen short in recent years as seasonal predictors within the Australian region. The short length of these records (i.e., <50 years) has meant that our current knowledge of larger-scale drivers at interdecadal, centennial, and millennial scales is limited. The development of a new tropical cyclone activity index spanning the last 1500 years has enabled the examination of tropical cyclone climatology at higher temporal resolution than was previously possible. Here we show that in addition to other well-known climate indices, solar forcing largely drives decadal, interdecadal, and centennial cycles within the tropical cyclone record.”Posted in Hurricanes/Tornados, Oceans, Solar | 4 ResponsesCOMMENTSBitter&twisted 4. March 2018 at 7:06 PM | PermalinkIt’s that big fusion reactor in space that is to blame.Not Man’s trivial CO2 emissions, despite what “consensus science” and the retarded MSM would have us believe.BoyfromTottenham 5. March 2018 at 6:29 AM | PermalinkB&t – yes, that is why the Greens want to ban nuclear power – its just like the sun! /sarctom0mason 5. March 2018 at 6:22 PM | PermalinkYEP,“Here we show that in addition to other well-known climate indices, solar forcing largely drives decadal, interdecadal, and centennial cycles within the tropical cyclone record.”The ridiculously insubstantial human generated atmospheric CO2 can not control these cycles, just like CO2 levels do not regulate the jet-stream, or weather variations, sea-levels, extinction of species, planetary ice sheet levels, or the Earth’s climate, these are wholly natural phenomena.Humans could affect any or all of these phenomena but NOT through our extremely merger output of atmospheric CO2. Man’s Small Role…New Scientific Findings Show Pacific Tropical Storm Activity Linked To Solar And Oceanic Cycles

What are the biggest turnarounds in scientific consensus in the last 50 years?

if we can summarize the past 50 years of biggest turnarounds in scientific consensus in science, technology, engineering, medicine and mathematics ?Coming up with the top 50 sagas in science is one of the ways that the Council for the Advancement of Science Writing plans to mark its 50th anniversary in 2010. The council began its work in 1960, in the wake of the first satellite launch, to help researchers and writers get the word out about the new era in science and technology that was dawning back then.For this list, we're focusing on research milestones in science and its allied fields – the kinds of things that have been covered at CASW’s annual “New Horizons in Science” meetings. We’re also going with a wide focus that touches upon the broad themes that have generated headlines through the years.19571. Satellites: Russia launches Sputnik, opening the space race. America responded with the 1958 launch of Explorer 1, the first satellite to produce a significant scientific return—namely, the discovery of the Van Allen radiation belt. The first successful weather satellite (TIROS 1) and the first communication relay satellite (ECHO) were launched in 1960. The space race and the satellite revolution kicked scientific and technological progress into high gear—and created greater demand for science news coverage.19602. ‘The Pill’: First oral contraceptive is introduced. The Food and Drug Administration's approval of Enovid-10 ushered in the era of "the Pill." Few medications have had such a widespread impact on society and social norms.3. The laser: First working laser is put into operation. Theodore Maiman's optical-light ruby laser followed up on earlier research by Charles Townes and Arthur Schawlow, who developed the first maser (microwave amplification by stimulated emission of radiation) in 1954. The 1964 movie “Goldfinger” may have portrayed it as a killer ray, but the device came to have user-friendly applications ranging from eye surgery to DVD players to supermarket checkouts.19614. Cracking the DNA code: Biochemist Marshall Nirenberg and his colleagues publish the first of a series of papers laying out how DNA's genetic code is translated within the cell. The cracking of the code built upon Watson and Crick's discovery of DNA's double helix almost a decade earlier, and opened the way for the genetic revolution to come.5. Plate tectonics: Geologists Harry Hess and Robert Dietz propose that seafloor spreading and subduction are basic parts of the mechanism for plate tectonics - a finding that led to the rapid acceptance of the tectonic theory behind Earth's large-scale geologic changes. The study of paleomagnetism led scientists to conclude that Earth's magnetic poles periodically reversed, providing an important geological dating method.19626. The environmental movement: Marine biologist Rachel Carson's masterwork, Silent Spring, is published. The environmental concerns voiced in the book helped spark a grassroots movement that led the federal government to create the Environmental Protection Agency in 1970 and phase out the use of DDT in 1972.7. Quasars: The first quasar—quasi-stellar radio source—is discovered by Dutch astronomer Maarten Schmidt. Scientists eventually determine that quasars are compact regions in the center of active galaxies that mark the presence of a supermassive black hole. The discovery was a key turning point in our understanding of galactic development and structure.19648. Quarks and all that: The quark model of particle physics is proposed. The ideas put forth by physicists Murray Gell-Mann and George Zweig touched off a decades-long quest to find the subatomic particles that matched the theory, including the J/Psi particle (found in 1974), the W and Z bosons (1983) and the top quark (2004-05). The quest continues today at America's Fermilab and Europe's Large Hadron Collider, where scientists hope to detect the Higgs boson, the last particle predicted by the Standard Model.9. Big bang's afterglow: Cosmic microwave background radiation is discovered by radio astronomers Arno Penzias and Robert Wilson, an achievement that earned them a Nobel Prize in 1978. The background radiation serves as the fossil imprint of the big bang and has helped astronomers determine the geometry of the universe. The Cosmic Background Explorer (COBE), launched in 1989, was a landmark space mission that followed up on Penzias and Wilson's discovery by mapping variations in the background radiation.196710. Heart transplants: First human-to-human heart transplant is performed. Dr. Christiaan Barnard's operation in South Africa prolonged his patient's life by only 18 days, but helped set the stage for rapid progress in medical transplantation techniques. Stanford heart surgeon Norman Shumway was an early pioneer in transplant medicine, and Denton Cooley and Domingo Liotta made a significant contribution in 1969 with the first human implantation of an artificial heart.196911. Moon landing: Humans make first landing on the moon. The Apollo series of moon surface missions, beginning with Apollo 11's Neil Armstrong and Buzz Aldrin, marked the climax of the decade-long U.S.-Soviet space race and also led to fresh scientific insights into the origins of Earth and the moon.12. Internet: First node is connected on ARPAnet, the predecessor to the modern Internet. What began as an research project to develop a nuke-proof communication system ended up revolutionizing academic exchange - and eventually modern society. Twenty years after the Internet's birth, CERN's Tim Berners-Lee brought the global network to a higher level with the invention of the World Wide Web.197013. Oncogenes: First cancer-causing gene is discovered in a chicken retrovirus. In 1976, J. Michael Bishop and Harold Varmus described the mechanism by which proto-oncogenes mutate and give rise to cancer—a discovery that earned them the Nobel Prize in 1989.197214. Medical scanners: First CT scanner is created. Computerized tomography X-ray scanners not only revolutionized medical imaging, but also presaged other imaging techniques such as magnetic resonance (MRI and functional MRI) as well as positron emission tomography (PET). Such techniques have been put to wide application in medical diagnosis and neuroscience, and even archaeology and paleontology.15: Recombinant DNA: Stanford biochemist Paul Berg creates the first recombinant DNA molecule, pointing the way to genetically modified organisms and gene-based medical therapies. The technique proved so powerful and controversial that it led to a 1975 conference at California's Asilomar Conference Center, where scientists voluntarily agreed on research restrictions. The Asilomar conference itself stands as a milestone in scientific accountability.197416. Human ancestors: Paleoanthropologist Donald Johanson discovers the 3.2 million-year-old fossil skeleton of a human ancestor dubbed "Lucy" in Ethiopia. The australopith find serves as the best-known milestone in a long line of hominid discoveries also including the Laetoli footprints in Tanzania (1976), the Toumai skull in Chad (2002) and Ardipithecus in Ethiopia ("Ardi" found in 1994, characterized in 2009).17. Countering the ozone threat: Chemists F. Sherwood Rowland and Mario Molina propose that chlorofluorocarbons may affect Earth's ozone layer—a hypothesis that was borne out over the following decade, particularly with the identification of the Antarctic ozone hole in 1985. Concerns about CFCs led to a phase-out of their production mandated by the 1987 Montreal Protocol. The Rowland-Molina research and its impact set a precedent for the current debate over greenhouse-gas emissions.197618. Pictures from other planets: NASA's Mars Viking probes land on Mars and send back the first color pictures from another planet. The twin missions follow up on the Soviet Venera 9 and 10 missions, which transmitted black-and-white images from Venus in 1975.197719. Deep-sea life: Biologists discover a rich ecosystem surrounding deep-sea hydrothermal vents along the Galapagos Rift. The discovery dramatically changed scientists' views on the conditions required for life on Earth, sparked new ideas about the potential undersea origins of life and led astrobiologists to consider the possibility of life in extraterrestrial settings such as the subsurface oceans of Europa (a moon of Jupiter) and Enceladus (a moon of Saturn).20. Farthest frontier: NASA launches the twin Voyager probes, following up on the Pioneer interplanetary missions with a grand tour of the solar system. Both craft flew past Jupiter and Saturn. Voyager 2 flew past Uranus and provided the first up-close look at Neptune. Voyager 1 is now the farthest-flung object ever made by humans. Both Voyager spacecraft probes carried a "Golden Record" with recordings of Earth imagery, sounds, speech and music.197821. Test-tube babies: The first baby conceived through in-vitro fertilization is born in England. The method is a boon to couples with fertility problems. Since then, an estimated 3.5 million "test-tube babies" have been born using assisted reproductive technology. But the method is not without controversy, as illustrated by the furor over the birth of octuplets to "Octomom" Nadya Suleman in 2009.22. Data encryption: MIT's Ron Rivest, Adi Shamir and Leonard Adleman describe the RSA public-key encryption method, which draws upon prime factorization to provide a means of secure communications. The encryption method serves as the foundation for applications ranging from military communications to Internet commerce.198023. Farewell to smallpox: The World Health Organization announces that smallpox has disappeared worldwide. The infectious disease killed untold millions over the course of centuries, and its eradication through widespread vaccination was a crowning achievement in public health.24. Killer asteroid: Luis and Walter Alvarez propose that a cosmic impact was responsible for the Cretaceous-Tertiary extinction that killed off the dinosaurs 65 million years ago. The hypothesis provided a focus for further scientific study into the causes of great extinctions. Cosmic impacts as well as the effects of climate change have come to be seen as the primary factors behind ancient die-offs.25. Cosmic inflation: Inflationary big bang theory is put forward by Alan Guth to explain seeming contradictions in the scientific model for the universe's creation. Subsequent observations supported inflation as the leading explanation for what happened immediately after the universe's origin to create the seeds of cosmic structure.198326. HIV identified: French doctors isolate the virus that causes AIDS. The discovery of the human immunodeficiency virus marked the beginning of a continuing effort to develop treatments for a disease that was at the time seen as a death sentence.27. Evo-devo: Researchers at the University of Basel and Indiana University independently discover homeobox DNA sequences within genes, which regulate patterns of development in a wide spectrum of organisms. Such work helped lead the way to evolutionary development ("evo-devo") studies that shed light on how different species are interrelated.198428. DNA decoders: Polymerase chain reaction technique for DNA analysis is developed by Kary Mullis, who won a Nobel Prize in 1993 for the discovery. PCR analysis has become the foundation of modern genetic research, touching on fields ranging from medicine and evolutionary biology to criminology.29: String theory: The first superstring revolution begins. Theorists suggest that string theory—the idea that the most fundamental constituents of matter can be thought of as minuscule strings vibrating in multidimensional space—could resolve the inconsistencies between general relativity and quantum physics. The first superstring revolution (1984-85) set the precedent for the second superstring revolution (1994-97). Even today, string theory sparks debate over whether it could be a "theory of everything" ... or a "theory of nothing."198530. Nanotechnology: Buckminsterfullerene is created in the lab by Robert Curl, Harold Kroto and Richard Smalley. The soccerball-like C60 molecule was the first of several artificial carbon constructs that paved the way for innovations in nanotechnology such as carbon nanotubes. Other nanotech innovations, such as gold nanoparticles and quantum dots, appear to have medical applications - but nanotechnology has raised medical concerns as well.198631. Catching up with comets: Europe's Giotto mission observes Halley's comet up close. For the first time, humans were given a glimpse at the source of one of the most dramatic displays in the heavens - and, according to some theories, a primordial source for the stuff of life. Cometary studies continued with 2005's Deep Impact mission, which fired a "bullet" into the heart of a comet, and the Stardust mission, which brought samples of comet dust back to Earth in 2006.32. High-temperature superconductors: The first high-temperature superconductor is discovered by Karl Mueller and Johannes Bednorz. The achievement earned them the Nobel Prize in 1987. High-temperature superconductors could eventually be used for more efficient power transmission and vehicle propulsion.199433. Witnessing a cosmic crash: Comet Shoemaker-Levy 9 smashes into Jupiter during one of the most widely watched astronomical events of the century. This was the first time astronomers predicted a planetary impact in advance. The event also had an impact on our own planet, pushing along efforts to catalog near-Earth asteroids and assess the threat they may pose.34. Quantum computing quest: U.S. mathematician Peter Shor demonstrates a theorem for a procedure that could be used to crack the RSA cryptographic code using a computer based on quantum interference phenomena. Such a quantum computer was discussed in 1980 by Paul Benioff, and a year later by Richard Feynman. Since then, researchers have worked to construct quantum computing devices. In 2007, Canada-based D-Wave said it built the first practical quantum computer, but other researchers doubted whether the device was truly a quantum computer. In 2009 Google announced that D-Wave’s technology was being incorporated into its new image recognition system.199535. Math milestones: More than 350 years after Fermat's Last Theorem was proposed, British mathematician Andrew Wiles proves the claim that xn + yn = zn works for whole integers only if n is less than 3. The hard-won proof earns Wiles a $50,000 prize. Eight years later, reclusive Russian mathematician Grigory Perelman proves another long-running puzzle, the Poincare conjecture - but turns down a $1 million prize as well as the Fields Medal, mathematics' highest honor.36. Alien planets: Astronomers detect the first extrasolar planet circling a normal star, 51 Pegasi. The discovery built upon 1992's detection of "pulsar planets," and pioneered techniques that have been used to find more than 400 extrasolar planets to date. The findings have led scientists to conclude that planets are much more common in the universe than previously thought.199637. First cloned mammal: Researchers announce the birth of Dolly the Sheep, the first mammal to be cloned from the adult cell of another animal. The achievement was followed by a string of other cloned species - ranging from dogs and cats to champion racing mules and rhesus monkeys. Dolly also touched off a long-running political and religious debate over human reproductive cloning.199738. Big bounce on Mars: Mars Pathfinder probe lands on Mars, marking a new era of interplanetary exploration two decades after Viking. Pathfinder blazed a trail for the even more wildly successful Mars Exploration Rovers, Spirit and Opportunity (which were both launched in 2003 and landed, like Pathfinder, cushioned by airbags). The Pathfinder mission also served as an early milestone in public interest in science as mediated by the Internet.199839. Dark energy: Two teams of astronomers studying distant supernovae determine that the expansion of the universe is accelerating, supporting a theoretical twist that Albert Einstein once called the "biggest blunder of my life." The discovery of the acceleration factor has sparked one of the biggest mysteries of contemporary cosmology: What is dark energy?40. RNA interference: Biomedical researchers Andrew Fire and Craig Mello publish a study showing how small RNA molecules influence genetic pathways in C. elegans worms, opening up a new field of research into RNA interference. RNAi-based therapies could address a wide variety of illnesses, including AIDS, cancer, Huntington's and Alzheimer's disease.41. Human embryonic stem cells: First human embryonic stem cells are isolated. Such cells can transform themselves into virtually any tissue in the body, raising hopes for new cell-based therapies. Because embryos were destroyed in the process of extracting the cells, the process touched off a years-long ethical and political debate, highlighted by federal funding limits in 2001. In 2007, two teams of researchers used genetic modification to transform ordinary skin cells into cells that appear to function like embryonic stem cells. The use of these reprogrammed cells, known as induced pluripotent stem cells or IPS cells, may resolve the ethical concerns.200142. Human genome decoded: The publicly funded Human Genome Project and privately funded Celera Genomics simultaneously publish the first working drafts of human genome in the journals Nature and Science, respectively. The genomic code was refined in succeeding years, providing a rich resource for studying the genetic origins of disease as well as tracing linkages in evolutionary biology.43. Age of the universe: Using data from the Hubble Space Telescope, the Boomerang balloon flight and other data, astronomers determine the age of the universe to be 13.7 billion years—an estimate further refined by data from the space-based Wilkinson Microwave Anisotropy Probe.44. Targeted cancer therapy: The Food and Drug Administration approves imatinib, marketed under the name Gleevec, as the first in a class of drugs that target the chemical mechanism behind the spread of cancer.200545. Titan revealed: Europe's Huygens lander descends through the smoggy atmosphere of the Saturnian moon Titan and sends back the first pictures of Titan's hydrocarbon rivers as well as its icy and possibly tarry surface. Huygens rode to Titan aboard the international Cassini orbiter, which continued to study Saturn and its moons. Another highlight of the Cassini mission was its observations of Enceladus' geysers of water ice, which led scientists to suggest the ice-covered moon possessed a subsurface liquid ocean and perhaps marine life forms as well.46. Planets realigned: Astronomers discover an icy world in the Kuiper belt that is larger than Pluto, forcing the International Astronomical Union to draw up a much-debated definition of the term "planet" a year later. The definition reclassified Pluto and the newfound world (later named Eris) as dwarf planets, distinct from the solar system's eight major planets.47. T. rex tissue: Paleontologists recover soft tissue from within the fossilized bones of a Tyrannosaurus rex, upending assumptions about the limits of fossil preservation. Analysis of the tissue turns up the signature of proteins similar to those found in the bones of chickens and ostriches, solidifying the linkage between dinosaurs and present-day birds.200648. Invisibility shield: Building on a formula proposed a year earlier, two teams of researchers announce the creation of "cloaking devices" that can cancel out the radiation reflected by an object and shield it from detection. Such devices are not as all-concealing as Harry Potter's cloak of invisibility, however. They are made from metamaterials that must be tailored for specific wavelengths and dimensions.200849. Tasting Martian water: NASA's Phoenix Mars Lander touches down in Mars' north polar region and samples the planet's water ice for the first time. Mission scientists say images of the probe's own lander legs appear to show droplets of liquid water stirred up during the landing. Phoenix's findings furnish the latest chapter in the decades-long scientific assessment of Mars' potential for life in ancient times.200950. Water on the moon: NASA sends a probe called Lunar Crater Observation and Sensing Satellite, or LCROSS, crashing into the moon. Weeks later, scientists report that an analysis of the impact debris confirms the existence of "significant" reserves of water ice. The mission followed up on indications from earlier probes (Clementine, Lunar Prospector, Chandrayaan 1, Cassini) and even from Apollo lunar samples. Some speculated that the findings could lead to a fresh round of lunar missions, but as the decade came to a close, NASA's plans for future exploration were still under review at the White House.Source : using Google and basically “ Council for the Advancement of Science Writing “

How has scientific research changed over the last 50 years?

if we can summarize the past 50 years of biggest turnarounds in scientific consensus in science, technology, engineering, medicine and mathematics ?Coming up with the top 50 sagas in science is one of the ways that the Council for the Advancement of Science Writing plans to mark its 50th anniversary in 2010. The council began its work in 1960, in the wake of the first satellite launch, to help researchers and writers get the word out about the new era in science and technology that was dawning back then.For this list, we're focusing on research milestones in science and its allied fields – the kinds of things that have been covered at CASW’s annual “New Horizons in Science” meetings. We’re also going with a wide focus that touches upon the broad themes that have generated headlines through the years.19571. Satellites: Russia launches Sputnik, opening the space race. America responded with the 1958 launch of Explorer 1, the first satellite to produce a significant scientific return—namely, the discovery of the Van Allen radiation belt. The first successful weather satellite (TIROS 1) and the first communication relay satellite (ECHO) were launched in 1960. The space race and the satellite revolution kicked scientific and technological progress into high gear—and created greater demand for science news coverage.19602. ‘The Pill’: First oral contraceptive is introduced. The Food and Drug Administration's approval of Enovid-10 ushered in the era of "the Pill." Few medications have had such a widespread impact on society and social norms.3. The laser: First working laser is put into operation. Theodore Maiman's optical-light ruby laser followed up on earlier research by Charles Townes and Arthur Schawlow, who developed the first maser (microwave amplification by stimulated emission of radiation) in 1954. The 1964 movie “Goldfinger” may have portrayed it as a killer ray, but the device came to have user-friendly applications ranging from eye surgery to DVD players to supermarket checkouts.19614. Cracking the DNA code: Biochemist Marshall Nirenberg and his colleagues publish the first of a series of papers laying out how DNA's genetic code is translated within the cell. The cracking of the code built upon Watson and Crick's discovery of DNA's double helix almost a decade earlier, and opened the way for the genetic revolution to come.5. Plate tectonics: Geologists Harry Hess and Robert Dietz propose that seafloor spreading and subduction are basic parts of the mechanism for plate tectonics - a finding that led to the rapid acceptance of the tectonic theory behind Earth's large-scale geologic changes. The study of paleomagnetism led scientists to conclude that Earth's magnetic poles periodically reversed, providing an important geological dating method.19626. The environmental movement: Marine biologist Rachel Carson's masterwork, Silent Spring, is published. The environmental concerns voiced in the book helped spark a grassroots movement that led the federal government to create the Environmental Protection Agency in 1970 and phase out the use of DDT in 1972.7. Quasars: The first quasar—quasi-stellar radio source—is discovered by Dutch astronomer Maarten Schmidt. Scientists eventually determine that quasars are compact regions in the center of active galaxies that mark the presence of a supermassive black hole. The discovery was a key turning point in our understanding of galactic development and structure.19648. Quarks and all that: The quark model of particle physics is proposed. The ideas put forth by physicists Murray Gell-Mann and George Zweig touched off a decades-long quest to find the subatomic particles that matched the theory, including the J/Psi particle (found in 1974), the W and Z bosons (1983) and the top quark (2004-05). The quest continues today at America's Fermilab and Europe's Large Hadron Collider, where scientists hope to detect the Higgs boson, the last particle predicted by the Standard Model.9. Big bang's afterglow: Cosmic microwave background radiation is discovered by radio astronomers Arno Penzias and Robert Wilson, an achievement that earned them a Nobel Prize in 1978. The background radiation serves as the fossil imprint of the big bang and has helped astronomers determine the geometry of the universe. The Cosmic Background Explorer (COBE), launched in 1989, was a landmark space mission that followed up on Penzias and Wilson's discovery by mapping variations in the background radiation.196710. Heart transplants: First human-to-human heart transplant is performed. Dr. Christiaan Barnard's operation in South Africa prolonged his patient's life by only 18 days, but helped set the stage for rapid progress in medical transplantation techniques. Stanford heart surgeon Norman Shumway was an early pioneer in transplant medicine, and Denton Cooley and Domingo Liotta made a significant contribution in 1969 with the first human implantation of an artificial heart.196911. Moon landing: Humans make first landing on the moon. The Apollo series of moon surface missions, beginning with Apollo 11's Neil Armstrong and Buzz Aldrin, marked the climax of the decade-long U.S.-Soviet space race and also led to fresh scientific insights into the origins of Earth and the moon.12. Internet: First node is connected on ARPAnet, the predecessor to the modern Internet. What began as an research project to develop a nuke-proof communication system ended up revolutionizing academic exchange - and eventually modern society. Twenty years after the Internet's birth, CERN's Tim Berners-Lee brought the global network to a higher level with the invention of the World Wide Web.197013. Oncogenes: First cancer-causing gene is discovered in a chicken retrovirus. In 1976, J. Michael Bishop and Harold Varmus described the mechanism by which proto-oncogenes mutate and give rise to cancer—a discovery that earned them the Nobel Prize in 1989.197214. Medical scanners: First CT scanner is created. Computerized tomography X-ray scanners not only revolutionized medical imaging, but also presaged other imaging techniques such as magnetic resonance (MRI and functional MRI) as well as positron emission tomography (PET). Such techniques have been put to wide application in medical diagnosis and neuroscience, and even archaeology and paleontology.15: Recombinant DNA: Stanford biochemist Paul Berg creates the first recombinant DNA molecule, pointing the way to genetically modified organisms and gene-based medical therapies. The technique proved so powerful and controversial that it led to a 1975 conference at California's Asilomar Conference Center, where scientists voluntarily agreed on research restrictions. The Asilomar conference itself stands as a milestone in scientific accountability.197416. Human ancestors: Paleoanthropologist Donald Johanson discovers the 3.2 million-year-old fossil skeleton of a human ancestor dubbed "Lucy" in Ethiopia. The australopith find serves as the best-known milestone in a long line of hominid discoveries also including the Laetoli footprints in Tanzania (1976), the Toumai skull in Chad (2002) and Ardipithecus in Ethiopia ("Ardi" found in 1994, characterized in 2009).17. Countering the ozone threat: Chemists F. Sherwood Rowland and Mario Molina propose that chlorofluorocarbons may affect Earth's ozone layer—a hypothesis that was borne out over the following decade, particularly with the identification of the Antarctic ozone hole in 1985. Concerns about CFCs led to a phase-out of their production mandated by the 1987 Montreal Protocol. The Rowland-Molina research and its impact set a precedent for the current debate over greenhouse-gas emissions.197618. Pictures from other planets: NASA's Mars Viking probes land on Mars and send back the first color pictures from another planet. The twin missions follow up on the Soviet Venera 9 and 10 missions, which transmitted black-and-white images from Venus in 1975.197719. Deep-sea life: Biologists discover a rich ecosystem surrounding deep-sea hydrothermal vents along the Galapagos Rift. The discovery dramatically changed scientists' views on the conditions required for life on Earth, sparked new ideas about the potential undersea origins of life and led astrobiologists to consider the possibility of life in extraterrestrial settings such as the subsurface oceans of Europa (a moon of Jupiter) and Enceladus (a moon of Saturn).20. Farthest frontier: NASA launches the twin Voyager probes, following up on the Pioneer interplanetary missions with a grand tour of the solar system. Both craft flew past Jupiter and Saturn. Voyager 2 flew past Uranus and provided the first up-close look at Neptune. Voyager 1 is now the farthest-flung object ever made by humans. Both Voyager spacecraft probes carried a "Golden Record" with recordings of Earth imagery, sounds, speech and music.197821. Test-tube babies: The first baby conceived through in-vitro fertilization is born in England. The method is a boon to couples with fertility problems. Since then, an estimated 3.5 million "test-tube babies" have been born using assisted reproductive technology. But the method is not without controversy, as illustrated by the furor over the birth of octuplets to "Octomom" Nadya Suleman in 2009.22. Data encryption: MIT's Ron Rivest, Adi Shamir and Leonard Adleman describe the RSA public-key encryption method, which draws upon prime factorization to provide a means of secure communications. The encryption method serves as the foundation for applications ranging from military communications to Internet commerce.198023. Farewell to smallpox: The World Health Organization announces that smallpox has disappeared worldwide. The infectious disease killed untold millions over the course of centuries, and its eradication through widespread vaccination was a crowning achievement in public health.24. Killer asteroid: Luis and Walter Alvarez propose that a cosmic impact was responsible for the Cretaceous-Tertiary extinction that killed off the dinosaurs 65 million years ago. The hypothesis provided a focus for further scientific study into the causes of great extinctions. Cosmic impacts as well as the effects of climate change have come to be seen as the primary factors behind ancient die-offs.25. Cosmic inflation: Inflationary big bang theory is put forward by Alan Guth to explain seeming contradictions in the scientific model for the universe's creation. Subsequent observations supported inflation as the leading explanation for what happened immediately after the universe's origin to create the seeds of cosmic structure.198326. HIV identified: French doctors isolate the virus that causes AIDS. The discovery of the human immunodeficiency virus marked the beginning of a continuing effort to develop treatments for a disease that was at the time seen as a death sentence.27. Evo-devo: Researchers at the University of Basel and Indiana University independently discover homeobox DNA sequences within genes, which regulate patterns of development in a wide spectrum of organisms. Such work helped lead the way to evolutionary development ("evo-devo") studies that shed light on how different species are interrelated.198428. DNA decoders: Polymerase chain reaction technique for DNA analysis is developed by Kary Mullis, who won a Nobel Prize in 1993 for the discovery. PCR analysis has become the foundation of modern genetic research, touching on fields ranging from medicine and evolutionary biology to criminology.29: String theory: The first superstring revolution begins. Theorists suggest that string theory—the idea that the most fundamental constituents of matter can be thought of as minuscule strings vibrating in multidimensional space—could resolve the inconsistencies between general relativity and quantum physics. The first superstring revolution (1984-85) set the precedent for the second superstring revolution (1994-97). Even today, string theory sparks debate over whether it could be a "theory of everything" ... or a "theory of nothing."198530. Nanotechnology: Buckminsterfullerene is created in the lab by Robert Curl, Harold Kroto and Richard Smalley. The soccerball-like C60 molecule was the first of several artificial carbon constructs that paved the way for innovations in nanotechnology such as carbon nanotubes. Other nanotech innovations, such as gold nanoparticles and quantum dots, appear to have medical applications - but nanotechnology has raised medical concerns as well.198631. Catching up with comets: Europe's Giotto mission observes Halley's comet up close. For the first time, humans were given a glimpse at the source of one of the most dramatic displays in the heavens - and, according to some theories, a primordial source for the stuff of life. Cometary studies continued with 2005's Deep Impact mission, which fired a "bullet" into the heart of a comet, and the Stardust mission, which brought samples of comet dust back to Earth in 2006.32. High-temperature superconductors: The first high-temperature superconductor is discovered by Karl Mueller and Johannes Bednorz. The achievement earned them the Nobel Prize in 1987. High-temperature superconductors could eventually be used for more efficient power transmission and vehicle propulsion.199433. Witnessing a cosmic crash: Comet Shoemaker-Levy 9 smashes into Jupiter during one of the most widely watched astronomical events of the century. This was the first time astronomers predicted a planetary impact in advance. The event also had an impact on our own planet, pushing along efforts to catalog near-Earth asteroids and assess the threat they may pose.34. Quantum computing quest: U.S. mathematician Peter Shor demonstrates a theorem for a procedure that could be used to crack the RSA cryptographic code using a computer based on quantum interference phenomena. Such a quantum computer was discussed in 1980 by Paul Benioff, and a year later by Richard Feynman. Since then, researchers have worked to construct quantum computing devices. In 2007, Canada-based D-Wave said it built the first practical quantum computer, but other researchers doubted whether the device was truly a quantum computer. In 2009 Google announced that D-Wave’s technology was being incorporated into its new image recognition system.199535. Math milestones: More than 350 years after Fermat's Last Theorem was proposed, British mathematician Andrew Wiles proves the claim that xn + yn = zn works for whole integers only if n is less than 3. The hard-won proof earns Wiles a $50,000 prize. Eight years later, reclusive Russian mathematician Grigory Perelman proves another long-running puzzle, the Poincare conjecture - but turns down a $1 million prize as well as the Fields Medal, mathematics' highest honor.36. Alien planets: Astronomers detect the first extrasolar planet circling a normal star, 51 Pegasi. The discovery built upon 1992's detection of "pulsar planets," and pioneered techniques that have been used to find more than 400 extrasolar planets to date. The findings have led scientists to conclude that planets are much more common in the universe than previously thought.199637. First cloned mammal: Researchers announce the birth of Dolly the Sheep, the first mammal to be cloned from the adult cell of another animal. The achievement was followed by a string of other cloned species - ranging from dogs and cats to champion racing mules and rhesus monkeys. Dolly also touched off a long-running political and religious debate over human reproductive cloning.199738. Big bounce on Mars: Mars Pathfinder probe lands on Mars, marking a new era of interplanetary exploration two decades after Viking. Pathfinder blazed a trail for the even more wildly successful Mars Exploration Rovers, Spirit and Opportunity (which were both launched in 2003 and landed, like Pathfinder, cushioned by airbags). The Pathfinder mission also served as an early milestone in public interest in science as mediated by the Internet.199839. Dark energy: Two teams of astronomers studying distant supernovae determine that the expansion of the universe is accelerating, supporting a theoretical twist that Albert Einstein once called the "biggest blunder of my life." The discovery of the acceleration factor has sparked one of the biggest mysteries of contemporary cosmology: What is dark energy?40. RNA interference: Biomedical researchers Andrew Fire and Craig Mello publish a study showing how small RNA molecules influence genetic pathways in C. elegans worms, opening up a new field of research into RNA interference. RNAi-based therapies could address a wide variety of illnesses, including AIDS, cancer, Huntington's and Alzheimer's disease.41. Human embryonic stem cells: First human embryonic stem cells are isolated. Such cells can transform themselves into virtually any tissue in the body, raising hopes for new cell-based therapies. Because embryos were destroyed in the process of extracting the cells, the process touched off a years-long ethical and political debate, highlighted by federal funding limits in 2001. In 2007, two teams of researchers used genetic modification to transform ordinary skin cells into cells that appear to function like embryonic stem cells. The use of these reprogrammed cells, known as induced pluripotent stem cells or IPS cells, may resolve the ethical concerns.200142. Human genome decoded: The publicly funded Human Genome Project and privately funded Celera Genomics simultaneously publish the first working drafts of human genome in the journals Nature and Science, respectively. The genomic code was refined in succeeding years, providing a rich resource for studying the genetic origins of disease as well as tracing linkages in evolutionary biology.43. Age of the universe: Using data from the Hubble Space Telescope, the Boomerang balloon flight and other data, astronomers determine the age of the universe to be 13.7 billion years—an estimate further refined by data from the space-based Wilkinson Microwave Anisotropy Probe.44. Targeted cancer therapy: The Food and Drug Administration approves imatinib, marketed under the name Gleevec, as the first in a class of drugs that target the chemical mechanism behind the spread of cancer.200545. Titan revealed: Europe's Huygens lander descends through the smoggy atmosphere of the Saturnian moon Titan and sends back the first pictures of Titan's hydrocarbon rivers as well as its icy and possibly tarry surface. Huygens rode to Titan aboard the international Cassini orbiter, which continued to study Saturn and its moons. Another highlight of the Cassini mission was its observations of Enceladus' geysers of water ice, which led scientists to suggest the ice-covered moon possessed a subsurface liquid ocean and perhaps marine life forms as well.46. Planets realigned: Astronomers discover an icy world in the Kuiper belt that is larger than Pluto, forcing the International Astronomical Union to draw up a much-debated definition of the term "planet" a year later. The definition reclassified Pluto and the newfound world (later named Eris) as dwarf planets, distinct from the solar system's eight major planets.47. T. rex tissue: Paleontologists recover soft tissue from within the fossilized bones of a Tyrannosaurus rex, upending assumptions about the limits of fossil preservation. Analysis of the tissue turns up the signature of proteins similar to those found in the bones of chickens and ostriches, solidifying the linkage between dinosaurs and present-day birds.200648. Invisibility shield: Building on a formula proposed a year earlier, two teams of researchers announce the creation of "cloaking devices" that can cancel out the radiation reflected by an object and shield it from detection. Such devices are not as all-concealing as Harry Potter's cloak of invisibility, however. They are made from metamaterials that must be tailored for specific wavelengths and dimensions.200849. Tasting Martian water: NASA's Phoenix Mars Lander touches down in Mars' north polar region and samples the planet's water ice for the first time. Mission scientists say images of the probe's own lander legs appear to show droplets of liquid water stirred up during the landing. Phoenix's findings furnish the latest chapter in the decades-long scientific assessment of Mars' potential for life in ancient times.200950. Water on the moon: NASA sends a probe called Lunar Crater Observation and Sensing Satellite, or LCROSS, crashing into the moon. Weeks later, scientists report that an analysis of the impact debris confirms the existence of "significant" reserves of water ice. The mission followed up on indications from earlier probes (Clementine, Lunar Prospector, Chandrayaan 1, Cassini) and even from Apollo lunar samples. Some speculated that the findings could lead to a fresh round of lunar missions, but as the decade came to a close, NASA's plans for future exploration were still under review at the White House.Source : using Google and basically “ Council for the Advancement of Science Writing “

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