“ Possable Nemesis? What is the periodicity of the rotation of the Milky Way galaxy? Isn't there another galaxy that is crashing into the Milky Way... (read full comment) ”
Posted on January 3, 2011 at 2:26 PM EST
The TR10
Our annual list of 10 technologies that could change the world. This year: Light-field photography. Solar microgrids. Crowdfunding. Facebook's Timeline. And more...
The Library of Utopia People Power 2.0
The Library of Utopia People Power 2.0
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