Galaxies

Front

What is a galaxy?

Back

A galaxy is a massive system that consists of stars, star clusters, dust, gas, and dark matter, all bound together by gravity.

Front

How many stars are typically found in a galaxy?

Back

Millions or billions.

Front

What are the three main types of galaxies?

Back

Spiral, Elliptical, and Irregular.

Front

What is a spiral galaxy?

Back

A spiral galaxy is a type of galaxy characterized by its spiral arms that wind outward from the center.

Front

What is an elliptical galaxy?

Back

An elliptical galaxy is a type of galaxy that has an ellipsoidal shape and lacks the distinct features of spiral galaxies.

Front

What is an irregular galaxy?

Back

An irregular galaxy is a galaxy that does not have a distinct regular shape, often appearing chaotic.

Front

Can galaxies collide?

Back

Yes, galaxies can collide and merge, leading to the formation of new galaxies.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our Solar System.

Front

Are there other galaxies besides the Milky Way?

Back

Yes, there are billions of other galaxies in the universe.

Front

What is dark matter?

Back

Dark matter is a form of matter that does not emit light or energy, making it invisible, but it exerts gravitational effects on visible matter.