Skywatch

  • December 13, 2012

    Episode 425: Magnetic Shields of Super-Earths

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    Our knowledge of exoplanets depends upon our studying the planets we know and then projecting our expectations onto the new worlds as they are discovered. But studies related to super-Earths, planets a few times more massive than Earth, show that these objects’ interiors may be quite dissimilar to that of our own planet. Does this rule out life on these planets? Intriguingly, not necessarily.