Big Idea: The formation of the universe can be explained by the big bang theory.

Learn about the history of telescopes and the function of refracting and reflecting optical telescopes.

Learn about radio astronomy, a type of astronomy that studies objects in space using radio waves and radio telescopes.

Some astronomers are not looking for stars, planets or galaxies. They are searching for intelligent life in the universe beyond our planet.

Learn about telescopes, how they work & why they're important to astronomers.

Explore how we see things far and near and from different angles. It's all about perspective!

NASA engineers apply kinematics and dynamics to test parachutes designed specifically to help space probes land safely using aerodynamics.

When astronomers search for extraterrestrial life, they often have to listen for radio waves coming from deep space. If you’re interested, you can help!

In planetary science, astronomers have found planets that orbit other stars, just like Earth orbits the Sun. Some of them might even be able to support life.