Children at the Sylmar Branch Library were captivated by David Lehman, a volunteer NASA/JPL Solar System ambassador who knows ...

The Solar System is a fascinating place, with each planet orbiting the Sun at its own unique distance. But how far apart are ...

Two meteorites found in the Sahara in 2023 might be from Mercury, a study suggests, but doubts remain due to how little is ...

CAPE CANAVERAL, Fla. (AP) — Astronomers have discovered the earliest seeds of rocky planets forming in the gas around a baby ...

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

Scientists are racing to learn as much as possible about the interstellar comet 3I/ATLAS before it fades from view forever ...

A cross July 14-15, 1965 (depending on your time zone), the Mariner 4 mission was doing something incredible. This early NASA ...

How did Earth, alone among the solar system's rocky planets, become the home for life? How, among all this frigid ...

There's a new interstellar object moving through our solar system and it's called 3I/ATLAS, according to NASA.

They’re not a perfect match, but it’s way too hot on the first planet for us to hop over and confirm for ourselves.

“We’ve always known that the first solid parts of planets, or ‘planetesimals’, must form further back in time at earlier ...