When a dying star runs out of fuel and sheds its outer layers, its remaining core can become an approximately Earth-sized, ...

There's a fascinating white dwarf star in our (relatively) nearby neighborhood with atmospheric characteristics like we've never seen before. Share on Facebook (opens in a new window) Share on X ...

Learn how gravity and mass are pulling two stars into tighter, faster orbit around each other, with an explosive collision inevitable. In this picture, we capture the binary in the moment where the ...

The days are numbered for two newly discovered dead stars locked in a spinning spiral of doom that will eventually lead to a catastrophic collision that triggers a supernova explosion, astronomers say ...

In 1181 AD, a bright "guest star" was observed to linger in the sky for around six months. Nearly 850 years later, the likely remnants of this event were rediscovered and tentatively linked to the ...

For six months in 1181, a dying star left a mark in the night sky. The striking object appeared as bright as Saturn in the vicinity of the constellation Cassiopeia, and historical chronicles from ...

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Astronomers find an explanation for the fastest stars in the galaxy while uncovering a new mechanism for a supernova explosion. Credit: Technion illustration Astronomers call a special kind of ...

Exploding white dwarfs observed by the Palomar 48 inch telescope at the Palomar Observatory in California. | Credit: Mickael Rigault and the Palomar Observatory/Caltech. There are a lot of ways for ...

For just the second time ever, astrophysicists have spotted a spectacular flash of ultraviolet (UV) light accompanying a white dwarf explosion. An extremely rare type of supernova, the event is poised ...

Type Ia supernovae are violent stellar explosions. Observations of their brightness are used to determine distances in the universe and have shown scientists that the universe is expanding at an ...

Researchers have used stellar evolution simulations to trace the future of ATLAS J1138-5139, an ultra-compact double white dwarf binary completing an orbit roughly every 28 minutes. Their models ...