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POPSThe Sun Go to the site for jaw-dropping hi-res, an animation that won't clip and detailed captions.
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POPSMercury as Revealed by MESSENGER Once again, the Astronomy Picture of the Day brings us current events from way out there to let us know there's more going on than the petty events on our puny planet.
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POPSNew picture of planet Mercury Image caption: The first of MESSENGER's ultra-high-res images of previously-unseen areas of the surface of Mercury. Taken January 14, on the upper right is the faint outline of the giant Caloris impact basin, including its western portions - never before seen by spacecraft. Caloris is one of the largest, youngest basins in the solar system
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POPSGalaxies found to be flowing together "He said another interesting idea proposed since the cosmic flow was detected is that instead of a gravitational pull by something beyond the observable universe, the galaxies are being pushed by an absence of mass in the local universe."
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POPSCopernican principle re-examined: We might be living in a giant cosmic bubble Clifton, along with Oxford researchers Pedro G. Ferreira and Kate Land, say that in coming years we may be able to distinguish between dark energy and the void. They point to the upcoming Joint Dark Energy Mission, planned by NASA and the U.S. Department of Energy to launch in 2014 or 2015. The satellite aims to measure the expansion of the universe precisely by observing about 2,300 supernovae. The scientists suggest that by looking at a large number of supernovae in a certain region of the universe, they should be able to tell whether the objects are really accelerating away, or if their light is merely being distorted in a void.
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POPSPrivately-funded Rocket Reaches Space Just a few days after the Chinese government performed its first spacewalk, SpaceX has achieved the first successful rocket launch funded by a private company. Finally, space exploration as a for-profit venture might be starting to make sense. And that may mean a new sort of race to the moon is beginning--this time between China's government and American private industry.
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