Stars and Galaxies

Front

What is the name of our galaxy?

Back

Our galaxy is called the Milky Way galaxy.

Front

What is responsible for holding the stars, gas, and dust together in a galaxy?

Back

Gravity.

Front

What is the distance measurement used by astronomers for distant objects?

Back

Light Years.

Front

What does a Hertzsprung-Russell diagram (H-R diagram) classify?

Back

Stars by temperature and brightness.

Front

What happens when a massive star's life ends?

Back

It can become a black hole or a neutron star.

Front

What is a galaxy?

Back

A large collection of stars, gas, and dust held together by gravity.

Front

What is the closest galaxy to the Milky Way?

Back

The Andromeda galaxy.

Front

What is a supernova?

Back

A powerful explosion that occurs at the end of a massive star's life.

Front

What is a black hole?

Back

A region in space where the gravitational pull is so strong that nothing, not even light, can escape.

Front

What is a neutron star?

Back

A dense remnant of a massive star that has exploded in a supernova.