They're called ghost particles for a reason. They're everywhere—trillions of them constantly stream through everything: our ...

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

Gaia data reveals signs of planets forming around young stars by measuring stellar motion, identifying planetary, brown dwarf, and stellar companions in early star systems ...

They're called ghost particles for a reason. They're everywhere – trillions of them constantly stream through everything: our ...

A new survey maps nearby K-type stars and shows why these long-lived, stable stars are important targets in the search for ...

Astronomers have spotted an Earth-sized planet drifting alone through the Milky Way, detected briefly by bent starlight, ...

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

From a window on the International Space Station, astronauts have captured a rare view of a nearby galaxy caught in the act ...

When we look up and see the Milky Way as a pale band in the night sky, we’re only seeing a tiny slice of our galaxy. In this ...

A new study led by Dr. Vivian Tan, who recently completed her Ph.D. at York University under the supervision of Prof. Adam Muzzin, provides the most ...

Not all planets are lucky enough to live in a neighborhood like our Solar System – some are doomed to roam the cosmos alone.

A lucky alignment of space- and ground-based telescopes has enabled researchers to nail down the mass of a rogue planet for the first time. Unlike worlds in our Solar System, rogue planets do not ...