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How the Density of Exoplanets' Atmospheres Weighs on the Odds for Alien LifeMoffett Field CA (SPX) May 03, 2013 At this early stage in the search for extraterrestrial life in our solar system and beyond, the emphasis is on liquid water. Where it can exist on a planet's or moon's surface, so the thinking goes, life as we know it has a chance. Much of the observational and theoretical work in astrobiology therefore concerns the "habitable zone," the orbital band around stars where a rocky world's water neither freezes away nor boils off. In a new contribution to this effort, a recent study has looked ... read more |
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Mars Icebreaker Life Mission Nine-Year-Old Mars Rover Passes 40-Year-Old Record NASA Completes First Part of Webb Telescope's 'Eye Surgery' Operation NASA Probe Counts Space Rock Impacts on Mars Ariane Flight VA214's launch vehicle marks a preparation milestone Eutelsat 3D launch a success Stanford professor and former NASA official explains how NASA might revive the Kepler space telescope | .. |
![]() Coelacanth genome surfaces An international team of researchers has decoded the genome of a creature whose evolutionary history is both enigmatic and illuminating: the African coelacanth. A sea-cave dwelling, five-foot long f ... more | .. |
![]() Power behind primordial soup discovered Researchers at the University of Leeds may have solved a key puzzle about how objects from space could have kindled life on Earth. While it is generally accepted that some important ingredients for ... more | .. |
![]() University of Tennessee professor discovers how microbes survive at bare minimum Beneath the ocean floor is a desolate place with no oxygen and sunlight. Yet microbes have thrived in this environment for millions of years. Scientists have puzzled over how these microbes survive, ... more | .. |
![]() Where Life Could Thrive: Interview With John Grotzinger On Tuesday March 13, NASA's Curiosity science team announced that the Martian rover had found the first confirmed site other than Earth where conditions were right to have once hosted ancient life ... more |
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![]() Highly effective communities of bacteria in the world's deepest oceanic trench An international research team announces the first scientific results from one of the most inaccessible places on Earth: the bottom of the Mariana Trench located nearly 11 kilometers below sea level ... more | .. |
![]() Antarctic and Arctic Insects Use Different Genetic Mechanisms to Cope With Lack of Water Although they live in similarly extreme ecosystems at opposite ends of the world, Antarctic insects appear to employ entirely different methods at the genetic level to cope with extremely dry condit ... more | .. |
![]() 'Bizarre Bacteria' in Lake Vostok Study Likely a Contaminant Last week, reports began to emerge that Russian scientists had discovered a previously unknown species of bacteria in samples of lake water from one of Antarctica's most famous subglacial lakes. Wor ... more | .. |
![]() Home toxic home Most organisms would die in the volcanic sulfur pools of Yellowstone and Mount Etna. Robust simple algae call it home, and their secrets to survival could advance human medicine and bioremediation. ... more |
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![]() Dispute over Antarctic 'unidentified' life Russian scientists still say an "unclassified" species of bacteria was found in water samples beneath Antarctic ice, although some colleagues are disputing it. ... more | .. |
![]() Russia admits no new life form found in Antarctic lake Russian scientists on Saturday dismissed initial reports that they had found a wholly new type of bacteria in a mysterious subglacial lake in Antarctica. ... more | .. |
![]() How to Thrive in Battery Acid and Among Toxic Metals In the movie Alien, the title character is an extraterrestrial creature that can survive brutal heat and resist the effects of toxins. In real life, organisms with similar traits exist, such as the ... more | .. |
![]() Russia finds 'new bacteria' in Antarctic lake Russian scientists believe they have found a wholly new type of bacteria in the mysterious subglacial Lake Vostok in Antarctica, the RIA Novosti news agency reported on Thursday. ... more |
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![]() Evidence that comets could have seeded life on Earth It's among the most ancient of questions: What are the origins of life on Earth? A new experiment simulating conditions in deep space reveals that the complex building blocks of life could have bee ... more | .. |
![]() Discoveries Suggest Icy Cosmic Start for Amino Acids and DNA Ingredients Using new technology at the telescope and in laboratories, researchers have discovered an important pair of prebiotic molecules in interstellar space. The discoveries indicate that some basic chemic ... more | .. |
![]() How did early primordial cells evolve Four billion years ago, soon after the planet cooled enough for life to begin, primordial cells may have replicated and divided without protein machinery or cell walls, relying instead on just a fli ... more | .. |
![]() Toxic oceans may have delayed spread of complex life A new model suggests that inhospitable hydrodgen-sulphide rich waters could have delayed the spread of complex life forms in ancient oceans. The research, published online this week in the journal N ... more |
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![]() Building blocks of life may be in space The discovery of prebiotic molecules in interstellar space suggests some basic chemicals key to life may have formed between the stars, U.S. astronomers say. ... more | .. |
![]() Detecting Life on Planets that Orbit White Dwarf Stars A white dwarf is a dead star that slowly cools down until it fades into oblivion. Yet it has been predicted that habitable planets can orbit a white dwarf. If we can somehow detect these planets, wo ... more | .. |
![]() Future Evidence for Extraterrestrial Life Might Come from Dying Stars Even dying stars could host planets with life - and if such life exists, we might be able to detect it within the next decade. This encouraging result comes from a new theoretical study of Earth-lik ... more | .. |
![]() Scientists turn eyes toward Europa in search for life US astronomers looking for life in the solar system believe that Europa, one of the moons of Jupiter, which has an ocean, is much more promising than desert-covered Mars, which is currently the focus of the US government's attention. ... more |
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![]() Telescopes Could Detect ET Life Signs Within 25 Years A team of Dutch astronomers has shown that with a new type of telescope it may be possible to detect signs of extraterrestrial life on planets orbiting other stars than the Sun. Although even the mo ... more | .. |
![]() Comet dust seeding life to Jupiter moons? Comet dust may have seeded Jupiter's moons, including Europa and its liquid ocean beneath an icy crust, with the raw ingredients for life, U.S. researchers say. ... more | .. |
![]() Can we live farther away from the Sun Researchers from the Pennsylvania State University (USA) have proposed new borders of the habitable zone for earth-type planets. Using as a basis the corrected absorption coefficients of molecules o ... more | .. |
![]() Planet color may suggest alien life The light signatures of lichens and algae reflected in a distant planet's distinctive coloring could be evidence of alien life, German researchers say. ... more |
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