Jupiter is the largest planet in the solar system, known for its massive size, strong gravity, powerful storms and many moons ...

Astronomers are closing in on one of the most tantalizing possibilities in planetary science, evidence that a previously ...

There have been questions about a mysterious ninth planet in our solar system for nearly a decade. Pluto was unseated as number nine in 2006. Now, a group of international researchers say they may ...

So far, humanity has yet to find its first "exomoon"—a moon orbiting a planet outside of the solar system. But that hasn't ...

There could be a ninth planet in our solar system that's lying in wait to be discovered - and no, it's not Pluto. Our solar ...

CAPE CANAVERAL, Fla. — Astronomers have discovered a rare in-sync solar system with six planets moving like a grand cosmic orchestra, untouched by outside forces since their birth billions of years ...

Astronomers have been searching for evidence that Planet Nine exists for years Becca Longmire is a digital news writer-reporter at PEOPLE. She has been working at PEOPLE since 2024. Her work has ...

Mercury has long baffled astronomers because it defies much of what we know about planet formation. A new space mission ...

Grab-and-go missions to asteroids have provided some of the most scientifically valuable samples since the Apollo ...

The sun’s outer atmosphere resembles a pufferfish.

(WHTM) – When you look into the night sky, you’ll see planes flying by, stars twinkling, and sometimes you’ll see planets. Mercury has 88 days in a year and is a terrestrial planet. The size of ...

Astronomers gazing upon a star system not too far from Earth were recently treated to a marvelous discovery: a group of six planets moving around a sun-like star in a seemingly perfect cosmic dance ...