January 2, 2016

• Another Year, Another 20 Billion Kilometers Through The Universe

  (M101, NASA, ESA, CXC, SSC, and STScI)

  We live on a spinning and orbiting world, but we don't usually think about our other, greater motions through the cosmos—maybe we should
  By Caleb A. Scharf on December 29, 2015...Scientific American

  Click here for the complete article:

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