Mercury takes only 88 Earth days to orbit the sun.

Stargazers will be treated to a dazzling six-planet "alignment" this January.

NASA has been monitoring a never-before-seen planet in its solar system, which is eight times the size of Earth. The ...

If you needed a sign from the cosmos, the planets are in fact aligning for you this evening. ValleyCentral spoke to Christian Hernandez, Program Specialist at UTRGV for the Center of Excellence in ...

A planetary alignment, or a "planet parade" according to the internet, will grace our night sky just after dusk, according to ...

An object eight times the mass of Jupiter may have swooped around the sun, coming superclose to Mars' present-day orbit ...

While planets circle the sun in what's called and heliocentric orbit, they rarely fall together in what appears to the human ...

When I was a kid, there were nine planets. Now we know of thousands! But that includes exoplanets, alien worlds that orbit alien suns. Only eight planets call our solar system home. Or there might ...

Stargazers will be treated to a rare seven-planet alignment in February. This is what scientists hope to learn.