February 17, 2011

This pair of images shows a before-and-after comparison of the part of Comet Temple-1 that was hit by the projectile launched by the Deep Impact spacecraft in 2005, as taken by the Stardust spacecraft that visited it on February 14, 2011

NASA has released an image of a man-made crater on comet Temple-1

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The six-planet model of Gliese 581

Astrobiology - Black plants and twilight zones / Bryn Nelson

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Prof. Shinya Yamanka

Ten Wolf Prize winners were announced, including the pioneers of stem cells and the developers of the electron microscope

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