Analysis of an ancient meteorite suggests that rocky planets both near and distant from the sun may have formed at the same ...

The star is surrounded by a protoplanetary disk, and this disk is the first evidence of debris condensing into what will ...

The astronomers observed hot minerals just beginning to solidify – the first specks of planet-forming material, the ...

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

International astronomers have for the first time witnessed the birth of a planetary system beyond Earth's sun that could one ...

The bold question-askers at What If explore whether our Solar System could survive if it ended up orbiting a black hole.

Just the third-ever confirmed interstellar object has been detected in our solar system. Here's what we know. (Spoiler: It's not aliens.) ...

The solar system consists of eight planets, several dwarf planets, hundreds of moons, and billions of asteroids, comets and meteoroids. The exact boundaries of the solar system ar ...

Astronomers first identified these minerals using the now-three-year-old James Webb Space Telescope. To see where exactly the ...

Astronomers have confirmed the third interstellar object on record is dashing through our solar system. Dubbed 3I/ATLAS, it ...

Scientists now say an interstellar comet discovered earlier this month could be one of the oldest that astronomers have ever ...

You can watch comet 3I/ATLAS live online tonight (July 3), thanks to the Virtual Telescope Project, which will livestream ...