Getting There From Here Community Forums Colonization Extrasolar Planets Show No Replies  Threads Replies Views  Last Post Gravity: How Much Is Too Much? by mdmetcalf 3 500 6/22/2010 9:23 PM by mdmetcalf Alpha Centauri Could Support Earth-Like Planets by mdmetcalf 0 245 2/1/2010 6:37 PM by mdmetcalf Colonizing Planets With Rings by mdmetcalf 0 304 12/22/2009 6:47 PM by mdmetcalf Page 1 of 1 First   Previous   Next   Last    Getting There From Here Community Forums Colonization Extrasolar Planets Display threads from: Today Past Three Days Past Week Past Two Weeks Past Month Past Three Months Past Year All Days Share this page -  email |  delicious.com |  digg |  technorati |  reddit |  stumbleupon |  facebook |  newsvine |  simpy |  google bookmarks |  yahoo bookmarks |  yahoo myweb |  ask |  slashdot |  rawsugar |  mister-wong |  backflip |  diigo |  tailrank |  live |  twitter |  fark |  blogmarks |  linkagogo |  wink |  ma.gnolia |  bluedot |  netvouz |  blinklist |  sphinn