Galaxies

Front

What is a galaxy?

Back

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

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What are the main types of galaxies?

Back

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

Front

How are galaxies classified?

Back

Galaxies are classified based on their observable characteristics, primarily their shape.

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.

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What is an elliptical galaxy?

Back

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

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What is an irregular galaxy?

Back

An irregular galaxy is a type of galaxy that does not have a defined shape or structure.

Front

What are the components of a galaxy?

Back

Galaxies are composed of stars, dust, and gas held together by gravity.

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.

Front

What is the Milky Way?

Back

The Milky Way is the galaxy that contains our solar system, characterized as a barred spiral galaxy.

Front

What is the difference between a galaxy and a constellation?

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A galaxy is a large system of stars and matter, while a constellation is a group of stars that form a recognizable pattern in the sky.