Front

What is a galaxy?

Back

A galaxy is a massive system that consists of stars, stellar remnants, interstellar gas, dust, and dark matter, bound together by gravity.

Front

What are the main types of galaxies?

Back

The main types of galaxies are spiral, elliptical, and irregular.

Front

What is the shape of the Milky Way galaxy?

Back

The Milky Way galaxy is a spiral galaxy.

Front

How do scientists classify galaxies?

Back

Scientists classify galaxies based on their shape, size, and brightness.

Front

What is the approximate age of the Milky Way galaxy?

Back

The Milky Way galaxy is approximately 13.0 billion years old.

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 type of galaxy that does not have a distinct regular shape, often appearing chaotic.

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 significance of the Andromeda Galaxy?

Back

The Andromeda Galaxy is the nearest spiral galaxy to the Milky Way and is on a collision course with it.