A single discovery in the outer solar system forced astronomers to confront a problem they couldn’t ignore, ultimately ...

Venturing past Jupiter is a generational challenge. This video explores the extreme frontiers of human spaceflight, where ...

The colliding objects are at least 37 miles across — at least four times larger than the object that collided with Earth 66 ...

The interstellar comet 3I/ATLAS safely passed Earth this morning as it continues its brief trip through our solar system.

In 2004, a bright point of light in the debris disk surrounding Fomalhaut was thought to be an exoplanet. But the spot ...

Our weekly roundup of the latest science in the news, as well as a few fascinating articles to keep you entertained over the ...

Scientists atop Mauna Kea on the Island of Hawai’i and across the Hawaiian chain are turning their telescopes skyward Friday ...

I/ATLAS has passed its closest point to Earth, meaning we will soon lose sight of it for good. Some scientists want to send a spacecraft to chase down the alien comet — or the next interstellar object ...

Young star systems are a place of violent collisions. Rocks, comets, asteroids and larger objects bounce off one another and ...

On Dec. 19, 3I/ATLAS will be about 1.8 astronomical units away (170 million miles), almost twice as far as the average ...

Young star systems are a place of violent collisions. Rocks, comets, asteroids and larger objects carom off one another and ...

The interstellar comet 3I/ATLAS, which has captivated astronomers worldwide for months, safely passed Earth early this morning. At approximately 06:00 GMT, the object reached its closest approach, ...