The supernova was the death of a red supergiant star 500 times larger than the sun, in a galaxy just 22 million light-years away. When you purchase through links on our site, we may earn an affiliate ...
Add Yahoo as a preferred source to see more of our stories on Google. NASA's Chandra X-ray Observatory releases its longest-spanning video of X-ray data yet. - NASA / CXC / SAO / Pan-STARRS ...
Scientists have captured the moment the shockwave of a supernova explosion breaks out through the surface of a doomed star for the first time, revealing what appears to be a surprisingly symmetrical ...
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