Everyone's favorite interstellar comet, 3I/ATLAS, flew past Earth overnight, coming within about 168 million miles (270 million kilometers) of our planet.

Comet 3I/Atlas is just the third known object to visit us from outside our solar system. So yes... we'll be talking about aliens.

Since its discovery, some people have speculated that interstellar visitor 3I/ATLAS could be alien technology. Harvard astrophysicist Avi Loeb points to its unusual trajectory and composition as ...

3I/Atlas, a rare interstellar object that had some astronomers wondering whether it's a spacecraft, will soon reach its nearest point to the sun and Earth. The interstellar comet will come within ...

AUSTIN (KXAN) — We’re just days away from the arrival of a comet from outside of our solar system. On December 19, 3I/ATLAS will make its closest approach to Earth after months of travel. This is the ...

Alfredo has a PhD in Astrophysics and a Master's in Quantum Fields and Fundamental Forces from Imperial College London.View full profile Alfredo has a PhD in Astrophysics and a Master's in Quantum ...

This week, Earth will get its best chance to steady an interstellar comet as it makes its closest approach to the planet. Comet 3I/ATLAS will get closest to Earth on Dec. 19, and anyone can get a ...

Comet 3I/Atlas, often dubbed the “alien green comet,” is making a rare and historic flyby of Earth, drawing global attention from astronomers and skywatchers. Scientists say the comet’s unusual glow ...

CAPE CANAVERAL, Fla. (AP) — A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as ...

A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Discovered over the summer, the comet known as 3I/Atlas will pass within ...

CAPE CANAVERAL, Fla. (AP) — A stray comet from another star swings past Earth this week in one last hurrah before racing back toward interstellar space. Starlink in the crosshairs: How Russia could ...