What is it?
A huge group of stars, gas, and dust, held together by gravity. Our _______ is called the Milky Way.
Galaxy
A tool that makes faraway objects seem larger and nearer.
Telescope
A large object in space that orbits around a star, like the Earth orbits around the sun.
Planet
To move around an object in a curved path, like how planets move around the sun.
Orbit
All of space and everything in it, including stars, planets, and galaxies.
Universe
The study of stars, planets, galaxies, and other objects in space.
Astronomy
A person who travels into space using a space rocket.
Astronaut
An object that orbits around a planet. Some are natural, like the moon, and some are made by humans.
Satellite
Giving off a lot of light. Stars and some planets can appear ______ in the night sky.
Bright
Far away in space or time.
Distant
A group of planets, moons, asteroids, and comets that orbit around a star.
Solar System
The empty area outside Earth's atmosphere where stars, and planets are.
Space
A force that pulls objects towards each other. It's what keeps us on the ground and holds planets in orbit around stars.
Gravity
To give off light. For example, the sun ______s brightly during the day.
Shine
To spin or turn around an axis. Planets _______ as they orbit around a star.
Rotate