Meteorites,Comets and Asteroids

  • By studying a triple planetary system, astronomers have obtained the 'chemical fingerprint' of an extrasolar planet. This is the first time the spectrum of an exoplanet orbiting a normal, almost Sun-like star has been obtained directly. The data represents a new milestone in the search
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  • Research indicates that the most Earth-like exoplanet yet found could be the rocky remains of a Saturn-sized gas giant. The study increases our knowledge of how planets form and evolve and could help astronomers better estimate the potential number of Earth-like planets in the universe.
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  • This past October, scientists confirmed the discovery of the first rocky planet outside our solar system. Now, astronomers have gathered further information about the planet, CoRoT-7 b. The distant world might experience surface temperatures of more than 2,200 degrees Celsius, rendering the surface uninhabitable.
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  • NASA's Kepler space telescope has discovered its first five exoplanets. The planets are all considered 'hot Jupiters' due to their sizes and extreme temperatures. The discoveries are proof of Kepler's capabilities, and astronomers hope that future findings will include smaller, Earth-like planets.
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  • AM is highlighting the top 10 stories of 2009. At number 3 is the launch of Kepler, a new NASA telescope that will aid in finding extrasolar planets. Scientists are already looking beyond Kepler for the next generation of telescopes that could show alien worlds
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  • Astrobiology Top 10: Double Discovery: Super-Earth and Ocean World
    Astrobiology Magazine is looking back over 2009, highlighting the top 10 astrobiology stories of the year. At number 6 is a double discovery of potentially habitable extrasolar planets orbiting the star Gliese 581. (This story originally was published on April 23, 2009).
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  • AM is highlighting the top 10 astrobiology stories of 2009. At number 8 is a report that the amino acid glycine was found in samples from a comet. This supports the theory that some of the ingredients for life were delivered to the Earth by
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  • Astrobiology Magazine is highlighting the top 10 astrobiology stories of the year. At number 9 is a story about astrometry, a technique to find extrasolar planets. After 50 years, astrometry spots its first planet - a milestone that could have implications for the proposed
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  • A new method of detecting past comet strikes on Earth could help scientists understand how frequent large impacts were in the past. The frequency of impacts could be used to determine the likelihood of future, catastrophic impacts.
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  • Astronomers have discovered a 'super-Earth' orbiting a distant star using off-the-Shelf, amateur technology. The finding shows how low-cost technologies can aid in the search for habitable worlds. The planet, GJ1214b, has a radius only 2.7 times that of Earth and may contain water and a
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