ESA spacecraft orbiting Mars and monitoring the Sun are stepping in to track 3I/ATLAS, a rare interstellar comet hidden ...

Using the European Southern Observatory 's (ESO) Very Large Telescope (VLT), astronomers have caught it pulling in gas and ...

The asteroid is projected to come within 865,000 miles of Earth—nearly five times closer than the orbit of the moon.

This meteor shower is noted for its bright, fast meteors that leave trails that can linger in the sky for a few minutes.

Scientists have been left puzzled after spotting that the mysterious interstellar object in our Solar System is 'bleeding' ...

A comet from another star system will swing by Mars on Friday as a fleet of spacecraft trains its sights on the interstellar visitor. The comet known as 3I/Atlas will ...

Smithsonian National Postal Museum, Washington, D.C.

CAPE CANAVERAL, Fla. (AP) — Scientists have uncovered new types of organics in icy geysers spouting from Saturn’s moon ...

Astronomers have observed a massive growth rate in a free-floating rogue planet that’s gobbling up gas and dust at a record rate of 6.6 billion tons per second.

October is a star-studded month with two meteor showers, winter constellations and a good chance to see a trio of green ...

A UCLA astronomer who leads planetary defense missions for NASA says avoiding asteroid impacts is “a problem we can ...

On October 3, Comet 3I/ATLAS will be almost 29 million kilometers (18.006 million miles) from Mars. The European Space Agency ...