Gentle Supernova

Ashton Edwards
By Ashton Edwards
Astronomy
Gentle Supernova

Binary star systems like CPD −29 2176 are a cosmic anomaly. There are probably only a dozen of them in the Milky Way at the moment. And they enrich the universe: with gold and platinum, for example.
©NOIRLab/NSF/AURA/J. da Silva/Spaceengine

Massive stars end in a fulminant explosion, their core collapses into a neutron star. Now astronomers have discovered an exception to this rule.

by THOMAS BÜHRKE

A bit of luck and persistence brought Noel Richardson and Clarissa Pavao of Embry-Riddle Aeronautical University in Prescott, Arizona to the

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