moons

"Exploring the Universe: Objects in Motion" encourages participants to explore the complex but predictable ways objects in the universe interact with each other. Stars, planets, moons, and other objects in space orbit around each other because of gravity, and NASA...

"Exploring the Solar System: Craters" is an active, hands-on activity that demonstrates how craters form, and what they can teach us about the history and composition of planets and moons. By dropping objects of various sizes and shapes into a...