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 ...
Swift observations with the European Southern Observatory's Very Large Telescope (ESO's VLT) have revealed the explosive death of a star just as the blast was breaking through the star's surface. For ...
Astronomers may have discovered the first example of an explosive cosmic event called a "superkilonova," in the form of a gravitational wave signal detected on Aug. 18, 2025.
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