Front

What force pulls clusters of stars together in most galaxies?

Back

Gravity

Front

What type of galaxy has a spiral shape with arms?

Back

Spiral galaxy

Front

What type of galaxy has an oval shape and contains few young stars?

Back

Elliptical galaxy

Front

What type of galaxy has no defined shape and contains a mix of stars and gas?

Back

Irregular galaxy

Front

What is the main characteristic of an elliptical galaxy?

Back

Few young stars, little gas or dust, and no arms.

Front

What is the Big Bang Theory?

Back

A scientific explanation for the origin of the universe, suggesting it began from a singular point.

Front

What is dark energy?

Back

A mysterious force that is causing the acceleration of the universe's expansion.

Front

What are the three main types of galaxies?

Back

Spiral, Elliptical, and Irregular.

Front

What is a barred spiral galaxy?

Back

A type of spiral galaxy with a central bar-shaped structure made of stars.

Front

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

Back

Spiral galaxies have arms and young stars, while elliptical galaxies are more rounded with older stars.