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Kepler Data Suggest Earth-size Planets May Be Next Door
Using publicly available data from NASA's Kepler space telescope, astronomers at the Harvard-Smithsonian Center for Astrophysics estimate that six percent of red dwarf stars in the galaxy have Earth ... more
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NASA's Deep Impact Spacecraft Eyes Comet ISON
NASA's Deep Impact spacecraft has acquired its first images of comet C/2012 S1 (ISON). The images were taken by the spacecraft's Medium-Resolution Imager over a 36-hour period on Jan. 17 and 18, 201 ... more
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New "retention model" explains enigmatic ribbon at edge of solar system
Since its October 2008 launch, NASA's Interstellar Boundary Explorer (IBEX) has provided images of the invisible interactions between our home in the galaxy and interstellar space. Particles emanati ... more
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A spiral galaxy with a secret
The NASA/ESA Hubble Space Telescope - with a little help from an amateur astronomer - has produced one of the best views yet of nearby spiral galaxy Messier 106. Located a little over 20 million lig ... more
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