Two new stars, or nova eruptions, have been resolved in unprecedented detail by six optical telescopes operating in unison as ...

Compelling evidence that the structure of matter surrounding supermassive black holes has changed over cosmic time has been ...

New measurements using gravitational lensing suggest the universe’s current expansion rate does not agree with signals from ...

Aliens might be transmitting communications signals to each other across exoplanets, some astronomers think. Since these ...

A University of Manchester astronomer is set to build the most detailed and accurate model of the radio sky ever built, offering new insights into the first stars, galaxies, and possibly new ...

Harvard scientist Avi Loeb claims the interstellar object 3I/ATLAS may be alien technology sent to seed life on Earth, ...

Astronomers have discovered 53 new supermassive black hole-powered quasars that are blasting out jets of matter at near light ...

An astronomy graduate student in England was scouring more than 100 pages of data per day from a radio telescope when she noticed a strange, repeating signal that she dubbed "LGM" — short for "little ...

Astronomers have discovered a surprising drop in visible quasars across multiple regions of the universe. These powerful cosmic beacons appear to be fading faster than models predicted, leaving ...

A pair of quasars that existed when the universe was only 3 billion years old has been spotted by the Hubble Space Telescope. The quasars were powered by a pair of supermassive black holes on a ...

A puzzling glow of high-energy light is shining from the center of the Milky Way, across a region thousands of light years wide. New supercomputer work shows that two ideas may explain the signal – ...

An international team of astronomers have employed the Spektr-RG spacecraft and various ground-based telescopes to investigate a distant quasar known as ID830. Results of the new observations, ...