When you are in the city, only a few of the brightest stars are visible. But when you are in the country, you can see many more stars than you can count. Sometimes you can even see the bright belt of our galaxy, the Milky Way. In this...

Test your knowledge about the solar system with games and activities designed to help explore what you know about the sun, the planets and their moons, space rocks, the Milky Way, and related topics.

Enter your birthday and find out how old you are on the other planets in the Milky Way Galaxy. Understand why our age is different on each planet.

What is a galaxy? What is the name of our galaxy? Site offers answers to these questions as well as many more.