• News_Image_349
    Embryonic stem cells behave differently outside the pull of Earth's gravity, researchers suggest. These findings indicate why the human body deteriorates during long space missions, and warn that procreation in space may be fraught with peril.
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    A new discovery of carbonate-bearing rocks on Mars indicates that habitable environments may have existed deep below the martian crust. The rock deposit, which was uplifted by an ancient meteor impact, also provides information about the potential existence of lakes and seas in Mars' past.
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  • Doubt Cast on Existence of Habitable Alien World
    Last month, astronomers announced the discovery of the first potentially habitable extrasolar planet. But at an astronomy meeting this week, doubts were raised about whether this new planet really exists.
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    Scientists are getting closer to unlocking the secrets of oxygenation of the Earth's oceans and atmosphere. Evolution of the Earth's biosphere is linked to the rise of oxygen, and new research shows that organisms like vascular plants may have appeared and evolved under lower oxygen
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    Astronomers are finding many new planets circling distant stars, but they have yet to find one like Earth. Studying the changing climate of Earth is an essential step in helping scientists identify similarly habitable worlds beyond our solar system.
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    As Enceladus orbits Saturn, it wobbles slightly. This small but periodic shift might be enough to explain the liquid water ocean that scientists think may exist beneath the small moon's icy crust.
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    A new simulation has demonstrated that complex organic molecules, such as amino acids and nucleotide bases, could be formed by chemical processes in the atmosphere of Titan. Studying these processes could yield clues about the origin of life.
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  • News_Image_59
    A new simulation has demonstrated that complex organic molecules, such as amino acids and nucleotide bases, could be formed by chemical processes in the atmosphere of Titan. Studying these processes could yield clues about the origin of life.
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    A newly discovered species of dinosaur may show that dinosaurs spread throughout the world by taking advantage of a natural catastrophe that wiped out their competitors. The study provides an example of how extinction events have shaped the evolution of Earth's biosphere.
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    Astrobiology Magazine´s field research editor Henry Bortman joined members of NASA´s AMASE team and JPL engineers at Mono Lake, California, during a field test of a prototype Mars drilling and sample-caching system. Finally, on Day 4, the weather cleared long enough to conduct outdoor tests.
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