The solar system lost its ninth planet back when Pluto was demoted to a dwarf planet, but research might indicate that there ...

The Sun is orbited by eight planets, at least five dwarf planets, tens of thousands of asteroids, and around three trillion comets and icy bodies. Although not all objects of the solar system are ...

PLANET MAKER. In this artwork showing the early solar system, an enormous dust disk stretches around the Sun and serves as a breeding ground for new planets as material clumps together.

Since the first discovery of planets beyond the solar system in 1995, more than 6,000 exoplanets have been identified. Many ...

Among the eight planets in the solar system, Jupiter is definitely the 'big guy'; it weighs more than the other seven ...

You may have seen it on posters in classrooms or at museums: all eight planets in our solar system perfectly lined up. But is it something that you will see within your lifetime?

Our Solar System is home to many unique planetary bodies, including protoplanets and dwarf planets. Here are the unique ...

From the scorching surface of Mercury to the icy edges of Neptune, our planetary neighborhood is full of wonders. The order of the planets isn’t just trivia—it tells a story about temperature, ...

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 ago.