Long before Pluto, another spherical chunk of rock and ice in our Solar System was given, and subsequently stripped of, planetary status. Learn about Ceres.

There's a lot of talk of "Supermoons" these days. But what are they, and how are they different from a regular full Moon? We explain.

Did you know that many of the familiar star formations you know and love aren't actually constellations? Learn more!

It may have had an identity crisis for a while, but Pluto is a planet again, and it's pretty interesting. Learn more!

Our former "ninth planet," Pluto, is actually a dwarf planet. Learn more!

Sure, everyone knows what a Full Moon is, but do you know what a Waxing Gibbous or a Waning Crescent are? Find out!

Uranus may not be as big as Jupiter or as impressively arrayed as Saturn, but look a little closer and you'll find that there's more to "Bullseye Planet" than meets the eye.

If you enjoy finding out the names of the various objects in the night sky, perhaps you've stumbled across one or more of the "Messier Objects." Find out more!

Though remote from the Earth, Saturn's unique ring system makes it possibly the most instantly recognized planet in our Solar System. Learn more about "the ringed planet."