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An Exoplanet with a Potassium-Rich Atmosphere

(PhysOrg.com) -- A hot Jupiter - a type of celestial object unknown only fifteen years ago - is a Jupiter-sized exoplanet orbiting so close to its host star that its atmospheric temperature is thought to be ...

dateMar 04, 2011 in Astronomy
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STAR TRAK for March 2011

Mercury will make its best evening appearance of the year in March. It will become visible to the unaided eye during the second week of the month about 40 minutes after sunset, almost directly below much brighter ...

dateMar 02, 2011 in Space Exploration
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Planet affects a star's spin

The discovery of a hot Jupiter exoplanet that transfers orbital momentum to its host star may hold the key to a clearer understanding of the evolution of common planetary systems, according to findings presented ...

dateJan 13, 2011 in Astronomy
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