Galaxies

Front

How old is the Milky Way?

Back

The Milky Way is approximately 13.7 billion years old.

Front

What type of galaxy is the Milky Way?

Back

The Milky Way is a spiral galaxy.

Front

What is the most abundant type of galaxy in the universe?

Back

The most abundant type of galaxy in the universe is the elliptical galaxy.

Front

What are the three main types of galaxies?

Back

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

Front

Define a spiral galaxy.

Back

A spiral galaxy is a type of galaxy characterized by its spiral arms that wind outward from the center.

Tags

NGSS.MS-ESS1-2

Front

Define 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

Define 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 the shape of a spiral galaxy?

Back

A spiral galaxy has a flat, rotating disk containing stars, gas, and dust, with a central concentration of stars known as the bulge.

Front

What is the central region of a spiral galaxy called?

Back

The central region of a spiral galaxy is called the bulge.

Front

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

Back

Spiral galaxies have distinct arms and a flat disk, while elliptical galaxies are more rounded and lack spiral structure.