Space Science Institute

Drag and drop planets and stars to make your own solar system. The physics engine will calculate how

Explore the Sun’s features and see current solar images courtesy of NASA’s Solar Dynamics Observator

Asteroids can be single rocks, or clumps of smaller rocks held together by their mutual gravity. And

Light can take tens of thousands of years to get from the fusion core of a star to its surface. Can

Use this app with a green background to take photos or videos on the Moon or Mars. This app was orig

We can only send spacecraft to Mars every two years. Have you ever wondered why? This simple simulat

Drag and drop planets and stars to make your own solar system. The physics engine will calculate how

Try your hand at this scale game: resize the objects until they’re the correct relative sizes. We’ll

You know the “states of matter”, right? Solid, liquid, gas…. and plasma? Test your knowledge by sort

It takes so long to get signals back and forth to Mars that you can’t just drive a rover, you have t