This nova is on the verge of exploding. You could see it any day now.
A so-called nova will cause a star system 3,000 light years away to shine any day now, making it suddenly visible to the naked eye.
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A so-called nova will cause a star system 3,000 light years away to shine any day now, making it suddenly visible to the naked eye.
But astronomers puzzled by the lack of signatures of expected heavy elements.
"This was an event that Earth sees only once every 10,000 years," said Northwestern University astrophysicist Peter Blanchard.
Northwestern University scientists said Friday they had confirmed that the cause of the brightest gamma-ray burst ever observed in October 2022 was an exploding star, known as a supernova, 2.4 billion light years away.
<p>In 2022, astronomers discovered the brightest gamma-ray burst (GRB) of all time. Now, astronomers confirm that a ‘normal’ supernova, the telltale sign of a stellar collapse, accompanied the GRB. The team also looked for signatures of heavy elements like gold and platinum in the supernova. They found no evidence of such elements, deepening the mystery of their origins.</p>