The Universe

Front

What is a cloud of gas and dust in space called?

Back

A Nebula

Front

What is the attractive force between objects called?

Back

Gravity

Front

Which group of stars has lower than average luminosity and higher than average temperature?

Back

White Dwarfs

Front

What are stars mainly made of?

Back

Hot Gas

Front

What are the three shapes galaxies take?

Back

Spiral, Elliptical, Irregular

Front

What is the center of a galaxy called?

Back

Galactic Core

Front

What is the term for a large system of stars, gas, and dust bound together by gravity?

Back

Galaxy

Front

What is the process by which stars are born?

Back

Nuclear Fusion in Nebulae

Front

What is the name of our galaxy?

Back

The Milky Way

Front

What is a supernova?

Back

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