Science
Revealing the lonely origin of Cassiopeia A, one of the most famous supernova remnants – Phys.org
Massive stars end their lives with energetic explosions known as supernovae. Stripped-envelope supernovae show weak or no traces of hydrogen in their ejecta, me…

Massive stars end their lives with energetic explosions known as supernovae. Stripped-envelope supernovae show weak or no traces of hydrogen in their ejecta, meaning that the star loses most or all of its hydrogen-rich outer layers before exploding.
Scientists hypothesize that these stars mostly originate in binary star systems, where one of the stars rips off the outer layers of the other star with its gravitational pullmany efforts have been made to discover the remaining companion star follo…
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