Supernovae are the funeral pyres of very massive stars. They forge most of the basic elements we know, including the ones that make up our bodies. But we still don't know exactly how they happen. It's getting a little clearer though, and a new study published today in Science could address part of the mystery.
Researchers looked at supernova remnant Cassiopeia A in a unique way — one that allowed them to map its interior in three dimensions. The story told by that map reveals large-scale structures in the interior of the remnant, a previously undiscovered trait that suggests stars might explode differently than astronomers had imagined, says study author Dan Milisavljevic, a postdoctoral fellow with the Smithsonian Astrophysical...
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