Front

What is a light year?

Back

The distance light can travel in a year.

Front

What is a galaxy?

Back

A group of stars, star systems, star clusters, dust, and gas held together by gravity.

Tags

NGSS.MS-ESS1-2

Front

How far is the Andromeda Galaxy from Earth?

Back

2.2 million light years.

Front

What are astronomical units used for?

Back

Distances within a solar system.

Tags

NGSS.MS-ESS1-3

Front

What unit is commonly used to measure distances in space?

Back

Light year.

Front

What is the Milky Way?

Back

The galaxy that contains our solar system.

Tags

NGSS.MS-ESS1-2

Front

What is the difference between a star and a galaxy?

Back

A star is a luminous celestial body, while a galaxy is a collection of stars and other matter.

Front

What is the nearest galaxy to the Milky Way?

Back

The Andromeda Galaxy.

Front

What is the significance of the Hubble Space Telescope?

Back

It has provided deep space images and helped measure distances to galaxies.

Front

What is a nebula?

Back

A giant cloud of dust and gas in space, often the birthplace of stars.