Hypervelocity stars have, since the 1920s, been an important tool that allows astronomers to study the properties of the ...

Our galaxy’s supermassive black hole is famous for being one of the dimmest in the universe. Evidence from a new space ...

The supermassive black hole at the center of the Milky Way apparently flared up dramatically relatively recently. An echo of ...

The image of supermassive black hole Sagittarius A * was created using data from the Event Horizon Telescope Collaboration.

ESA's Gaia mission, the Very Large Telescope and other ground-based telescopes have discovered stellar black hole Gaia BH3.

The system is known as J1218/1219+1035, and is located 1.2 billion light-years from us. The three nuclei of the three ...

On Jan. 15, 2025, the Gaia spacecraft took its last image. Then the craft ran a final round of engineering tests, fired its ...

Scientists are developing new methods to turn black hole images into time-resolved 3D movies, revealing how plasma, jets, and gravity behave near event horizons ...

Do all stars exist in galaxies, or do some exist in intergalactic space?Thomas GriffilthAtlantic City, New Jersey Nearly all ...

An inexplicably hot, fast-growing cluster of galaxies in the early universe has scientists questioning theories of galactic evolution. Astronomers have spotted an unexpectedly hot galaxy cluster in ...

After combing through NASA's James Webb Space Telescope's archive of sweeping extragalactic cosmic fields, a small team of ...

It's estimated there may be trillions of rogue planets wandering through the Milky Way, unbound to any star. Since detecting ...