What If on MSN
What If Jupiter Was a Rocky Planet?
Eleven times wider than Earth. Over 300 times more massive. And a million times more terrifying. Jupiter may look like a beautiful ball of swirling clouds, but on the inside, it is a gaseous inferno.
September's sky is rich with opportunities. Titan's shadow continues to transit Saturn. The ringed planet reaches opposition along with Neptune, with both worlds in the same region of the sky. Mars is ...
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