When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: rbkomar/Getty Images Earth isn't alone in orbiting our sun; it's joined by a bunch of ...

This skywatching quiz will test your knowledge of how eclipses, when to see them, and what makes each one so spectacular.

It's Space Week from 4 - 10 October. But how much do YOU know about space and our solar system? Test yourself with our ...

Visual: In this diagram, J, S, U, and N are the solar system’s giant planets. What’s the collective name for the objects in ...