A star that was stripped of its outer layers shortly before it exploded as a supernova offers astronomers an unprecedented glimpse of a stellar interior. Read the paper: Extremely stripped supernova ...

For the first time, scientists have directly tracked the slow transformation of a dying star over more than a century—revealing it is heating up faster than any other typical star ever observed. This ...

I love simple questions that wind up having complicated—or at least not straightforward—answers. Astronomers twist themselves into knots, for example, trying to define what a planet is, even though it ...

Astronomers using AI have captured a once-in-a-lifetime cosmic event: a massive star’s violent death triggered by its black hole companion. The explosion, known as SN 2023zkd, not only produced a ...

An artist's rendering of T Coronae Borealis, also known as T CrB, a recurrent nova in the constellation Corona Borealis. It is a binary system composed of a red giant star and a white dwarf star, ...

Astronomers have observed what they believe to be a never-before-seen companion star orbiting Betelgeuse, a pulsating red supergiant star in the shoulder of the Orion constellation. One of the best ...