NASA Found a Solar System with 7 Earthlike Planets, All Could Have Water

NASA recently discovered a planetary system orbiting a small star that's home to at least 7 rocky, roughly Earth-sized planets. 

These planets have a number of remarkable characteristics. For example:

  • Every single one of these planets, under the right conditions, could potentially have liquid water.
  • They're so close together that it would be possible to see other planets clearly in the sky if you were standing on the surface of one.
  • At least 3 of the planets are located in the star's "habitable zone."
 

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