Galaxies

Front

What is the age of the Milky Way?

Back

The Milky Way is approximately 13.7 billion years old.

Front

What type of galaxy is composed of older stars and low-mass stars?

Back

Elliptical galaxy.

Front

What type of galaxy is characterized by a flat, rotating disk of stars, gas, and dust?

Back

Spiral galaxy.

Front

What is an irregular galaxy?

Back

A type of galaxy that does not have a distinct regular shape, often containing young stars and gas.

Front

What are the main components of a spiral galaxy?

Back

Billions of stars, gas, dust, and a central concentration of stars.

Front

What distinguishes elliptical galaxies from spiral galaxies?

Back

Elliptical galaxies are more rounded and contain older stars, while spiral galaxies have a flat disk structure.

Front

Can you name a characteristic of irregular galaxies?

Back

They lack a defined shape and structure.

Front

What is the primary difference between spiral and elliptical galaxies?

Back

Spiral galaxies have a rotating disk and arms, while elliptical galaxies are more spherical and have little gas and dust.

Front

What is the significance of the central bulge in a spiral galaxy?

Back

It contains a high concentration of stars and often a supermassive black hole.

Front

What type of stars are predominantly found in elliptical galaxies?

Back

Older stars and low-mass stars.