By zeroing in on the infrared scale, researchers offer details of the black hole jet stream in faraway galaxy M87.

A new study may visually solve an enduring mystery about a bright object that's been studied since the 19th century

By developing a new theoretical relation describing just how compact neutron stars — which are the remnants of massive stars that have gone supernova — can get, researchers have found a way to test the properties of nuclear physics under very extreme conditions.

Sunspot AR4618 erupted with an M4.4-class solar flare causing a coronal mass ejection (CME) that may give Earth a glancing blow. NASA's Solar Dynamics Observatory captured the fireworks in multiple wavelengths. Footage courtesy: NASA / SDO and the AIA, EVE, and HMI science teams, Helio Viewer | edited by Space.com's Steve Spaleta

Black holes are so strange that physicists have long wondered if they are quite what they seem. Now we are set to find out if they are instead gravastars, fuzzballs or something else entirely

It’s possible that these objects might be the primordial beginnings of the supermassive black holes found in the centers of most galaxies.

The supermassive black hole at the center of the Circinus galaxy is being fed with gaseous material by two spiral arms, according to an international team of researchers led by Wout Goesaert (Leiden University,

For the first time, astronomers have detected intense, fast-changing radio signals from a tidal disruption event, dubbed AT2024tvd, located outside its galaxy's core. Now, astronomers are trying to understand what the black hole is doing 2,