Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby sun-like star, providing a ...

In a cosmic first, scientists identified signs of early planet formation by looking deep into the gas disk around a baby star ...

This artist’s concept depicts one of the solar system’s inner planets slamming into Earth after being nudged on a collision course by a passing star. Such a world-shattering cataclysm is ...

Stars passing close to the sun could cause planets to collide, including with Earth, or even be ejected as rogue planets, new simulations show.

It Came From Outside Our Solar System, and It Looks Like a Comet 3I/ATLAS, earlier known as A11pI3Z, is only the third interstellar visitor to be discovered passing through our corner of the galaxy.

Visitors from beyond the solar system In news that surely isn't ominous, interstellar visits have been getting more frequent lately. In fact, scientists only first detected an extrasolar object in ...

Astronomers are monitoring an object headed our way that may have wandered over from another star system. Scientists have discovered what might be only the third known interstellar object to pass ...

CAPE CANAVERAL, Fla. (AP) — Astronomers are monitoring an object headed our way that may have wandered over from another star system.

Astronomers are monitoring an object headed our way that may have wandered over from another star system.

The European Space Agency said Wednesday that scientists have discovered what might be only the third known interstellar object to pass through our solar system.