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Topic: Space · 2 stories (clear)

• Dark Matter Revealed By Sagittarius Dwarf Galaxy
  Science · Space · 2010-01-07 15:13 · posted by samzenpus · from the that's-a-lot-of-dark dept. · 2 comments
• 400 Years Ago, Galileo Discovered Four Jovian Moons
  Science · Space · 2010-01-07 10:34 · posted by kdawson · from the dwarfing-the-dwarf-planets dept. · 161 comments