Galaxies

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 galaxy contains the sun and its solar system?

Back

The Milky Way galaxy.

Front

What are the three main types of galaxies?

Back

1. Spiral 2. Elliptical 3. Irregular

Front

What is a spiral galaxy?

Back

A spiral galaxy is a type of galaxy characterized by its spiral structure, with arms that extend 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

What is the closest galaxy to the Milky Way?

Back

The Andromeda Galaxy.

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 Hubble Space Telescope in studying galaxies?

Back

The Hubble Space Telescope has provided detailed images and data about galaxies, helping astronomers understand their formation and evolution.

Front

What is the role of gravity in galaxies?

Back

Gravity is the force that holds galaxies together, keeping stars and other matter in orbit around the galaxy's center.