Messier 87 (M87), also known as Virgo A or NGC 4486, is a supergiant elliptical galaxy in the Virgo constellation. It is one ...

By combining data from NASA’s IRAS and NuSTAR telescopes, scientists have uncovered more hidden supermassive black holes than earlier estimates suggested. Their findings indicate that over a third of ...

Using the Hubble Space Telescope (HST), astronomers from the University of California Santa Cruz (UCSC) and elsewhere have ...

Gravitational wave observations have revolutionized our understanding of black holes, revealing crucial details about their masses and spins. These measurements, collected from binary black hole ...

A surprising discovery has been made in the Milky Way, a star cluster called Palomar 5 is home to more than 100 stellar-mass black holes. This finding was published in Nature Astronomy. Palomar 5 is a ...

An active galactic nucleus (AGN) is a region at the center of a galaxy where a supermassive black hole is actively consuming surrounding material. As this matter spirals toward the black hole, it ...

A fluffy cluster of stars spilling across the sky may have a secret hidden in its heart: a swarm of over 100 stellar-mass black holes. The star cluster in question is called Palomar 5. It's a ...

Here’s how it works. Astronomers have seen a quiet supermassive black hole in a distant galaxy erupt jets of ultrahot gas, marking the first time a black hole ever "switched on" within human ...

A fluffy cluster of stars spilling across the sky may have a secret hidden in its heart: a swarm of over 100 stellar-mass black holes. The star cluster in question is called Palomar 5. It's a stellar ...

Astronomers have discovered a supermassive black hole firing a giant energy beam directly at Earth. This cosmic giant, weighing as much as 700 million suns, is located in a galaxy from the early ...

Astronomers don't know why these stellar clusters formed enormous black holes so readily, nor why this phenomenon petered out 1.5 billion years after the Big Bang. These objects are also dim in X ...