Galaxies and Stars Review

Front

What type of galaxy is characterized by a smooth, featureless shape and older stars?

Back

Elliptical galaxy.

Front

What is the primary process that occurs in the cores of main sequence stars?

Back

Fusion of hydrogen into helium.

Front

What force is responsible for the attraction between objects in space, including stars and galaxies?

Back

Gravity.

Front

What is an object in space with gravity so strong that nothing can escape it?

Back

Black Hole.

Front

What is a light year a measurement of?

Back

Distance.

Front

What type of galaxy has a distinct spiral structure and is often home to many young stars?

Back

Spiral galaxy.

Front

What is the term for the explosion of a star at the end of its life cycle?

Back

Supernova.

Front

What is the name of the dense remnant of a massive star that has undergone a supernova explosion?

Back

Neutron Star.

Front

What type of galaxy does not have a defined shape and often contains a mix of old and new stars?

Back

Irregular galaxy.

Front

What is the main sequence in the context of stars?

Back

A continuous and distinctive band of stars that appears on plots of stellar color versus brightness.