Milky Way Galaxy

Front

The Milky Way is a _____________ galaxy.

Back

spiral

Front

Identify region A: What is the central bulge?

Back

The central bulge is a dense region of stars located at the center of the Milky Way galaxy.

Front

Why do young stars have higher heavy metal content?

Back

They are composed of material from older stars that have gone supernova.

Front

What is the name of our galaxy?

Back

Milky Way

Front

Approximately how many stars are in the Milky Way galaxy?

Back

300 billion

Front

What is dark matter?

Back

Dark matter is a form of matter that does not emit light or energy, making it invisible and detectable only through its gravitational effects.

Front

What is the halo of the Milky Way?

Back

The halo is a spherical region surrounding the Milky Way that contains older stars, globular clusters, and dark matter.

Front

What is the significance of Sagittarius A*?

Back

Sagittarius A* is the supermassive black hole located at the center of the Milky Way galaxy.

Front

What are the main components of the Milky Way galaxy?

Back

The main components include the central bulge, disk, halo, and spiral arms.

Front

What is the difference between a spiral galaxy and an elliptical galaxy?

Back

A spiral galaxy has a flat, rotating disk with spiral arms, while an elliptical galaxy is more rounded and lacks the distinct structure of spiral arms.