A little-known chapter of the Hubble Space Telescope’s history is a reminder of the risks of looking at the sun ...

Using the Cerro Tololo Inter-American Observatory (CTIO), an international team of astronomers have performed deep optical ...

A newly discovered neutron star is behaving so strangely that it may alter our understanding of the dense remains left behind ...

"For such a faint and unknown target, we were not sure if we would get any data at all — but the strategy worked." ...

Researchers found far more hidden black holes than previously known, indicating plenty of behemoths lurking in thick clouds ...

The dense stellar remnant would, if confirmed, be the closest known object to any black hole, according to preliminary ...

A black hole infamous for strange features has once again baffled astronomers, this time with rapid X-ray flashes. What could ...

The first black hole that astronomers observed "turning off" just turned back on, releasing jets of hot gas into the cosmos.

In the years following the launch of NASA's Hubble Space Telescope, astronomers have tallied over 1 trillion galaxies in the universe. But only one galaxy stands out as the most important nearby ...

NASA's TESS exoplanet hunter has found the fastest-disintegrating planet ever. Losing a moons-worth of matter every million ...

This rare quasar with spiral arms could help astronomers understand how supermassive black holes feed and grow.

Amateur astronomers who have purchased telescopes from leading suppliers in the U.S. may be entitled to a payment from a ...