A ..... is a large celestial body that is composed of gas and emits light.

A ..... is a large collection of stars, gas, and dust

The ....... is space and all the matter and energy in it.

The four planets that orbit farthest from the sun are called gas giant planets. They are

All these planets are terrestrial planets except .....

A ....... is the distance that light travels through space in one year.

Clusters and superclusters are areas throughout the universe, where galaxies are .....

.......... are huge spherical areas where very little matter exists in the universe .

Which structure includes all matter and space that exists?

Earth and the solar system are found in

Which planet is furthest from the sun and is considered to be an “ice giant?”

Gas Giant or Terrestrial: Saturn

Gas Giant or Terrestrial: Mars

From smallest to the largest

Galaxies are large groups of millions, billions, or even trillions of stars. What keeps the stars in a galaxy from moving away from each other?

Proxima Centauri is the closest star to Earth and the Sun. It is located 4.3 light years away from Earth. How long does it take light from Proxima Centauri to reach Earth?

The order of the planets from the sun is: