Astronomy on MSN
The Sky Today on Friday, May 22: Busy moons around Jupiter
Looking for a sky event this week? Check out our full Sky This Week column. May 21: Check in on Saturn and Mars Tonight we're ...
Live Science on MSN
The solar system's largest moon may be heating up — offering clues to its mysterious origins
The largest moon in the solar system — Jupiter’s Ganymede — has a unique and inexplicable magnetic field. New research could finally explain it: the moon is heating up.
A new study suggests Ganymede—our neighborhood's biggest moon—still has a hot, churning core cranking out its unique magnetic ...
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