Later in December, the 3I/ATLAS interstellar comet will get as close to Earth as it ever will. Here's what to know.

NASA and ESA both shared new images of the interstellar comet 3I/ATLAS this week, as the agencies gear up for the mysterious ...

Citizens of Earth, be prepared, as the third-ever interstellar object, comet 3I/ATLAS, was on its way to make the closest ...

I nterstellar comet 3I/ATLAS will make its closest approach to Earth this month, whizzing by at 270 million kilometers (168 ...

Discovered in late June and confirmed as the third known interstellar object in July, 3I/ATLAS has raced through the inner ...

Experts say the event offers a rare opportunity for both scientists and skywatchers to observe the mysterious visitor from ...

Interstellar comet 3I/ATLAS is set to make its closest-ever approach to Earth on December 19, 2025, passing safely at a ...

Amateur astronomer Tony Dunn must have been particularly impressed by the November crop of new asteroids to have put the 18 ...

Just days after the Geminid meteor shower, the asteroid from which it comes, 3200 Phaethon, will pass close to Earth. What is it? Asteroid 3200 Phaethon, discovered in 1983, is named for its close ...

Don't look now, but an asteroid is heading our way on Halloween. On the other hand, go ahead and look. As it misses Earth by about 300,000 miles (slightly farther away than the moon), the asteroid, ...

Proxima Centauri, a star four light-years from the sun, shoots out a violent solar flare in this artist's depiction. Only a few years ago, astronomers heralded the discovery of a rocky world circling ...