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When a massive star dies, astronomers expect a familiar chemical script: hydrogen and helium on the outside, heavier elements ...

Plasma has long been treated as an exotic laboratory curiosity, yet a new world-first result is forcing scientists to look at ...

Astronomers have sighted the oldest known stellar explosion, dating back to when the universe was less than a billion years ...

Astronomers have spotted the longest gamma-ray burst ever seen, a cosmic explosion that lasted seven hours — and they ...