Galaxies and the Universe

Front

What type of galaxy is shaped like a football?

Back

Elliptical galaxy.

Front

What is the estimated percentage of the universe composed of dark matter?

Back

More than 90 percent.

Front

Is the Milky Way a spiral galaxy?

Back

True.

Front

What is a large grouping of stars, dust, and gas bound together by gravity called?

Back

Galaxy.

Tags

NGSS.MS-ESS1-2

Front

What does it mean if a galaxy is red-shifted?

Back

The more red-shifted a galaxy is, the faster it moves away from Earth.

Tags

NGSS.HS-ESS1-2

Front

What are the three main types of galaxies?

Back

Spiral, elliptical, and irregular.

Front

What is the center of a galaxy typically composed of?

Back

A supermassive black hole.

Front

What is the term for the process by which galaxies move away from each other?

Back

Cosmic expansion.

Tags

NGSS.HS-ESS1-2

Front

What is the significance of Hubble's Law in astronomy?

Back

It states that the farther away a galaxy is, the faster it is moving away from us.

Tags

NGSS.HS-ESS1-2

Front

What is dark energy?

Back

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