Cassiopeia A: The Surprise Inside an Exploding Star

January 30, 2015 4:40 PM

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Cassiopeia A: The Surprise Inside an Exploding Star

Supernovas, the violent explosions of massive stars after they have exhausted their nuclear fuel, have long been one of the most fascinating mysteries of the universe.

Now, a new 3-D map of one of the most well-known supernovas, Cassiopeia A, reveals a bubbly interior, which could shed new light on the spectacular way these stars die, according to research published today in the journal "Science."

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