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

A new study claims it is possible an "alien visitor" could have warped our solar system during its earliest years.

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

When you first learned about the Solar System, you probably saw diagrams that made it look orderly, with planets arranged in ...

All seven of the other planets in our solar system are about to become visible at once in a great planetary alignment – ...

Six of our cosmic neighbors are expected to line up across the night sky tonight, in what has been dubbed a "planetary parade ...

Worlds will align for a "planetary parade" in January, with four bright and easily visible to the naked eye. But an even ...

Six planets are parading across the sky, appearing as some of the night's brightest stars. A few easy tips can help you ...

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

Because planets always appear in a line, the alignment isn't anything out of the norm. What's less common is seeing so many ...

All of our solar system’s planets are lining up to parade through the night sky at once. This extraordinary celestial event will see the sky scattered with seven visible planets in what is known ...

In the early evening, look to the southwest and you'll see Venus (the brightest object in the sky after the Sun and Moon) and ...