Now a new theory holds that cosmic rays are born in the shock waves following the explosive deaths of massive stars. (discovermagazine.com)
A supernova — the violent death of a massive star — had erupted in the Large Magellanic Cloud galaxy, only 160,000 light - years away. (sciencenews.org)
The explosive death of a massive star whose energy output causes its expanding gases to glow brightly for weeks or months. (webbtelescope.org)