The subatomic particles are incredibly numerous. About 1,000 neutrinos from stars other than the sun pass through a thumbnail every second.

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

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, ...

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

Astronomers have, for the first time, pinned down both the mass and distance of a planet that drifts through the galaxy ...

Scientists have discovered a rogue planet roaming the Milky Way after combining observations from Earth and a space telescope ...

Their analysis showed that the planet lies about 3,000 parsecs, or just under 10,000 light-years, from Earth. Its mass is ...

Big feelings collide with steady choices this morning. With the emotional Moon opposing the radiant Sun for a Full Moon at ...

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

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