Universe Review

Front

What is the largest structure in the universe?

Back

The Milky Way Galaxy.

Front

Where is Earth located in the Milky Way Galaxy?

Back

On the outer edge of the Milky Way Galaxy, far from the center.

Front

What color and temperature are the hottest stars?

Back

Blue stars are hotter and brighter.

Front

Which celestial body has the greatest mass?

Back

The Galaxy.

Front

What is the main sequence in stars?

Back

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

Front

What is a star?

Back

A massive, luminous sphere of plasma held together by gravity.

Front

What is the solar system?

Back

A collection of celestial bodies, including the Sun, planets, moons, asteroids, and comets, bound by gravity.

Front

What is the difference between a star and a planet?

Back

A star generates its own light through nuclear fusion, while a planet reflects light from a star.

Front

What is the Milky Way Galaxy?

Back

A barred spiral galaxy that contains our solar system and billions of other stars.

Front

What is the significance of the main sequence in stellar evolution?

Back

It represents the stable phase of a star's life where it fuses hydrogen into helium.