Scientists have detected the most distant supernova ever seen, exploding when the universe was less than a billion years old.
WASHINGTON, Nov 12 (Reuters) - The explosive death of a star - a supernova - is among the most violent cosmic events, but precisely how this cataclysm looks as it unfolds has remained mysterious.
A research team led by Caltech may have just discovered the first-ever superkilonova, a cosmic phenomenon in which a star explodes twice in violently different ways. Their analysis of a series of ...
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