Any day now, a massive stellar blast could light up the night sky so brightly, you won't even need a telescope to see it. Sound familiar? In case you're wondering, yes, this is the same so-called nova ...

Astronomers have spotted an extraordinarily long-lived cosmic explosion lasting more than seven hours, breaking the record as the longest known gamma-ray burst. The event, known as GRB 250702B, took ...

A gamma-ray burst (GRB) — the most energetic type of explosion in the universe since the Big Bang — is detected once every day, on average. But what happened on July 2, 2025, was highly unusual: ...