Galaxies

Front

What are galaxies composed of?

Back

Galaxies are composed of stars, dust, and gas held together by gravity.

Front

What distance measurement do astronomers use for distant objects?

Back

Light Years.

Front

What type of galaxy is characterized by a spiral shape?

Back

Spiral galaxy.

Front

Order these objects from smallest to largest: Planets, solar system, galaxy, universe.

Back

Planets, solar system, galaxy, universe.

Front

What type of galaxy has no defined pattern or shape?

Back

Irregular galaxy.

Front

What is the largest known structure in the universe?

Back

The observable universe.

Front

What is a group of stars, gas, and dust bound together by gravity called?

Back

A galaxy.

Front

What type of galaxy is typically round and smooth?

Back

Elliptical galaxy.

Front

What is the Milky Way?

Back

The galaxy that contains our solar system.

Front

What is the term for a galaxy that does not fit into the spiral or elliptical categories?

Back

Irregular galaxy.