Meteorites,Comets and Asteroids

  • Laser Guided Asteroids
    A team of researchers is developing unique methods for characterizing and deflecting asteroids that could pose a threat to Earth.
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  • Light from Alien Words
    NASA's Spitzer Space Telescope has for the first time captured enough light from exoplanets to identify signatures of molecules in their atmospheres. The feat is a significant step toward being able to identify life beyond our solar system.
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  • Cutting into Planet Layers
    NASA's powerful Hubble Space Telescope has allowed astronomers to study for the first time the layer-cake structure of a planet orbiting another star.
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  • Modeling Other Earths
    Of the more than 200 extrasolar planets found so far, most are not rocky worlds like the Earth. That doesn´t mean Earths are rare – we just don´t have the technological ability to detect their subtle signatures. In this interview, Barrie Jones discusses
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  • Rosetta Locks on Target
    ESA's Rosetta spacecraft has caught its first glimpse of an asteroid it will be studying later during its primary mission. The asteroid 21-Lutetia is one target that may yield information about the origin of our Solar System.
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  • Astrobiology Top 10: Stardust
    Astrobiology Magazine is looking back over 2006, highlighting the Top 10 astrobiology stories of the year. At number 2 is the successful return of the Stardust capsule back to Earth. The spacecraft had flown halfway to Jupiter to collect samples of interstellar dust and
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  • Astrobiology Top 10: Icy Super Earth
    Astrobiology Magazine is looking back over 2006, highlighting the Top 10 astrobiology stories of the year. At number 6 is the discovery of an icy "Super Earth." Astronomers have found over 200 planets orbiting other stars, but most of them are more massive
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  • Cometary Toolkits
    Scientists have identified nitrogen-rich organic molecules in samples of cometary dust from the Stardust spacecraft. The result indicates that comets could have delivered these important molecules to the early Earth at a time when life was first emerging.
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  • Finding Our Origin in a Meteorite
    NASA researchers have found organic materials that formed in the early Solar System preserved in the freshest meteorite ever received from space. Organic matter in meteorites is of intense interest because this material may have seeded the early Earth with the building blocks of life.
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  • Pale Blue Dot III: An Astrobiological Field Report
    In this essay, David Grinspoon provides an overview of the "Pale Blue Dot III" workshop recently held in Chicago. While the overall scientific theme of the workshop was finding habitable Earthlike planets around other stars, communicating that science to the general public was also
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  • KW4 Keeping its Distance, For Now
    The Arecibo Observatory has made new observations of a binary near-Earth asteroid named KW4. Studying the formation and evolution of such near-Earth asteroids helps researchers learn how to mitigate the potential threat they pose to Earth. KW4 is classified as a Potentially Hazardous Asteroid,
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  • Meteorites: Friend or Foe?
    In this interview, Monica Grady discusses the varieties of dust and meteorites that have fallen to Earth, and explains what they tell us about the history of the solar system and its potential for life.
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  • Seeking Out Meteorites
    In this interview, Monica Grady talks about hunting for meteorites on the moon in order to learn more about the ancient Earth. She also explains why it took so long for us to find a meteorite originating from Mars.
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  • Rocky Worlds
    The COROT space telescope is proceeding smoothly towards its launch in December 2006. Once in orbit, COROT will become the first spacecraft devoted to the search for rocky planets, similar to our own Earth.
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  • The Astrobiology Connection
    Welcome to Radio Astrobiology, the podcast of Astrobiology Magazine. Join us as David Grinspoon investigates a mystery at the bottom of the Earth, and explains what it might mean for the possibility for life elsewhere in the solar system.
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