Then, they pieced together a record of the X-ray light produced by a supermassive black hole in the Andromeda galaxy called M31 star or M31*. Their research provides insight into the unique ...

From spellbinding images to groundbreaking scientific discoveries, we look back on some of Hubble's most exciting milestones.

A team of US astronomers led by Kailash Sahu said they have finally discovered the first isolated stellar-mass black hole ...

In 1923, Edwin Hubble captured a pulsing star within the Andromeda Galaxy on ... time as we know it breaks down. A black hole devours material from its galaxy, and a border known as the ...

A massive black hole at the heart of a galaxy in the Virgo constellation is waking up, shooting out intense X-ray flares at regular intervals that have puzzled scientists, a study said Friday.