Vocabulary: Outer Space

It travels through space for the purpose of visiting or exploring other worlds.

a person who travels beyond the earth's atmosphere.

1. It is an astronomical body orbiting Earth as its only natural satellite.

It is the layer of air or other gases around the earth.

It means to send it into the air or into space.

The sun together with the planets and all other bodies that orbit the sun, including moons, asteroids, and comets.

It is a large, round object in space that moves around a star

It is the spiral galaxy containing our solar system.

the star that provides light and heat for the earth.

They are large numbers of particles orbiting about a planet in a flat disc-shaped region.