Since Pluto was relegated to dwarf planet status, almost everyone has agreed that there are eight planets in our solar system. However, it might be time to rewrite the textbooks.

Jupiter's rapid early growth dramatically reshaped our solar system, scientists now reveal. Its immense gravity acted as a ...

PARIS (AFP) ― The solar system has at least two more planets waiting to be discovered beyond the orbit of Pluto, Spanish and British astronomers said. The official list of planets in our star system ...

New research from Rice University shows that Jupiter, the largest planet in our solar system, played a major role in shaping ...

Learn how many suns exist in the Milky Way and how to understand how many sun-like stars are out there could help us understand how many Earth-like planets there are, too.

Not all of the solar system’s building blocks formed simultaneously. Some of the first solid bodies, or planetesimals, formed ...

The rate of finding these distant worlds has recently increased, with astronomers scrambling to accommodate the data ...

If you look up on a clear night, the brightest and largest object in the sky will probably be the moon. And unless you have a decent telescope, it is the only natural satellite you can see with your ...

The James Webb Telescope captures the beginning of planetary formation around the young star HOPS-315 for the first time.

With water being so important to life on Earth, scientists often look for it on exoplanets. But some of those worlds might ...