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

The sun is at the centre of the solar system. The solar system is the name we use to describe the eight planets, and their moons, that circle, or orbit, around the sun. CHILD: Our planet ...

Saturn, the sixth planet from the Sun, is one of the most breathtaking sights in our solar system. With stunning visuals ...

Discover Snapchat Planets Order, a creative feature in Snapchat Plus to rank your closest friends like planets in a solar ...

A planet parade like the one beginning tonight is quite uncommon, occurring once every 10-20 years. Here are the planets you ...

There may be an undiscovered planet in the outer solar system whose presence is revealed by the strange orbit of objects beyond the eighth planet Neptune. The tantalizing prospect of a ninth ...