Astronomers tracked a star in Andromeda as it dimmed and vanished without the usual fiery explosion, offering rare clues to how black holes form.

Astronomers report a supergiant star in the Andromeda Galaxy, M31-2014-DS1, collapsed directly into a black hole without a supernova, confirming predictions of failed stellar explosions.

In thelatest release from NASA, stunning new images of the Andromeda galaxy (M31) have captured the attention of the global scientific community. Andromeda, located around 2.5 million light-years from ...

A bright star in the Andromeda galaxy appears to have simply vanished. After a dramatic mid-infrared flare in 2014, the object has faded in visible light by a factor of more than 10,000 by 2023, ...

In A Nutshell A massive star in the Andromeda Galaxy faded by more than 10,000 times over a decade and vanished from view, ...

Using archival data from NASA’s NEOWISE mission along with data from other space and ground-based observatories, astronomers identified the clearest observational record yet of a massive star fading ...

In 2014, a NASA telescope observed that the infrared light emitted by a massive star in the Andromeda galaxy gradually grew brighter. The star glowed more intensely with infrared light for around ...