Wednesday, September 9, 2026

Astronomers Unmask a Supernova Impostor

This artist's illustration shows a massive star exploding as a supernova at the end of its life. Supernovae often emit telltale outbursts before they explode, and that's what astronomers thought they found coming from one massive star. But as it turns out, it was an impostor. Image Credit: NASA, ESA, NSF's NOIRLab, Mark Garlick, Mahdi Zamani

Astronomers observe faint light signals from stellar objects, study it intently, and try to understand what's behind these signals. In one case, the signals they detected masqueraded as an imminent supernova explosion. But more observations revealed a different reality.



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