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 universe beyond our Solar System is vast and filled with mysteries, and some of its most fascinating secrets lie just beyond our cosmic doorstep. While the Sun is the closest star to Earth, it's ...

"It is possible that a planet once existed in the solar system but was later ejected, causing the unusual orbits we see today ...

SYFY ’s The Ark follows the crew of an interstellar spacecraft on a multi-light-year journey to the star next door. In the ...

Comet 3I/ATLAS is expected to make its closest pass by the Sun on Oct. 30, when it will fly 130 million miles inside the ...

Newly released imagery from NASA shows the Sun's corona in stunning detail after the Parker Solar probe performed its closest ...

Given 3I/ATLAS' highly eccentric orbit, this will be its one and only visit to our solar system, as its trajectory does not ...

Scientists have released the closest images ever taken near the sun, captured by NASA’s Parker Solar Probe flying 3.8 million ...

Close stellar encounters could change the structure of our planetary system, potentially dooming Earth or other worlds to ...

There's a new interstellar comet in the neighborhood! Known as 3I/ATLAS, this comet poses no threat to Earth – but it does provide a rare opportunity to study an object that originated outside of our ...

A newly discovered object, dubbed A11pl3Z, appears to be moving too fast and straight to have originated in the solar system. If confirmed, it will be the third interstellar visitor ever spotted.

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