Solar System

A huge collection of millions or billions of stars, dust, and gas.

A group of stars that form a picture

The nine planet and other objects that orbit around the sun

An imaginary line through the center of the Earth.

The path one object in space takes around another object

A force which tries to pull two objects each other. Earth's gravity causes objects to fall.

The movement when an object spins

A tool used to make objects that are far away appear nearer.

A person trained to command, pilot, or serve as a crew member of a spacecraft

Satellites that travel with a planet as it orbits the Sun