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    NASA satellites have shown that an increase in the brightness of the asteroid Scheila is likely due to a collision between Scheila and a smaller asteroid. Studying the physical properties and behavior of asteroids can help us understand their potential role in the origins of
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    A technique that astronomers use to parse starlight might also be useful in assessing skin blots that may become cancerous.
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    More than 30 years after they left Earth, NASA's twin Voyager probes are now returning data from the edge of the Solar System. With each passing day they are beaming back a message that, to scientists, is both unsettling and thrilling.
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    NASA's twin Voyager 1 and 2 spacecraft are the longest continuously-operating spacecraft in deep space. They have provided invaluable information about the nature of our solar system and the planets it contains.
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    By flying aircraft into and above rain clouds, scientists from NASA and other organizations are trying to understand why certain clouds produce copious amounts of rain.
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    In this essay, Marc Kaufman explains how his first contact with astrobiologists led him to write a book that tells the latest stories behind the science.
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    New research shows that water molecules could actually influence the structure of DNA. The finding could provide clues about how DNA originated, and how it functions in modern cells.
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    By studying life in the scalding hot springs of a volcanic crater in Siberia, a team of scientists has discovered bacteria that produce and consume carbon monoxide. The findings could provide new insight into the evolution of Earth's early atmosphere.
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    Brilliant gold- and silver-colored beetles have given optics researchers new insights into the way biology can recreate the appearance of some of nature's most precious metals.
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    A new study indicates that the Earth could recover from rising CO2 emissions faster than previously thought. Fifty-six million years ago, during a period of rising temperatures and atmospheric CO2, the Earth increased its ability to pull carbon from the air and sped up the
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    Fifty million-year-old fossils from ancestors of today's dugongs are helping scientists understand the temperature and composition of the waters in which they swam. The study is providing new information about climate change events, both ancient and modern.
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    Greenhouse gases have increased more frequently in Earth's history than previously believed. Fluxes involved a significant exchange of carbon between surface reservoirs and the atmosphere. Higher levels of CO2 affect nutrient uptake by planets, which could cause problems as the modern climate continues to heat
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    Could the evolution of the human mind, and its ability to create a potentially infinite variety of thoughts, be attributed to the formation of a 'super-brain'. One theory about this collective mind centers around and event that took place in Africa no later than 75,000
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    NASA's Mars Reconnaissance Orbiter has discovered the total amount of atmosphere on Mars changes as the tilt of the planet's axis varies. This process could affect the stability of any liquid water, if it exists on the martian surface.
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    Scientists have discovered otherworldly microbial mounds deep in an Antarctic lake. The microbial stromatolites are unlike any others yet identified, and could help astrobiologists understand primitive life on the early Earth.
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