The universe is vast, and while our solar system is the center of our everyday lives, it is just a tiny part of the cosmic ...

The detection of 3I/ATLAS marks our solar system’s third time saying aloha to an interstellar visitor, following the ...

Newfound interstellar object 3I/ATLAS may be carrying pristine material from early in the Milky Way’s star-forming history.

Astronomers on Wednesday confirmed the discovery of an interstellar object racing through our Solar System -- only the third ...

An object dubbed 3I/ATLAS is only the third interloper from outside the Solar System seen in all of human history.

Officially named 3I/ATLAS, the comet was confirmed as having originated outside of Earth's solar system on July 3, according ...

Astronomers have observed an object that originated from beyond our solar system, thought to be an interstellar comet, ...

All eyes are on Comet 3I/ATLAS as astronomers worldwide chase the exotic ice ball through our solar system ...

NASA telescopes in Chile have discovered a comet from interstellar space, making its closest approach in October.

"Astronomers may have just discovered the third interstellar object passing through the Solar System!" the agency's ...

When you buy through links on our articles ... if there were no Planet Nine," said the Times. If there were one, that Planet Nine would "nudge the closest part of 2017 OF201's trajectory inward until ...

– Gavriel, age 10, Paducah, Kentucky A cloud of collapsing gas created our Sun, the first thing to form in our solar system. This happened about 4½ billion years ago.