Structure of the Universe Review

Front

What do scientists believe about the origin of irregular galaxies?

Back

They were once spiral or elliptical galaxies.

Front

What is the distance of the universe believed to be in light years?

Back

10 billion light years.

Front

What is our galaxy?

Back

The Milky Way.

Front

Which type of galaxy is shown in the image?

Back

Elliptical.

Front

What happens to meteorites when they enter the Earth's atmosphere?

Back

They hit the ground.

Front

What are the three main types of galaxies?

Back

Spiral, elliptical, and irregular.

Front

What is a black hole?

Back

A region in space where the gravitational pull is so strong that nothing, not even light, can escape from it.

Front

What is the Big Bang Theory?

Back

The leading explanation about how the universe began, stating it started from a singular point and has been expanding ever since.

Front

What is a supernova?

Back

A powerful and luminous explosion of a star, marking the end of its life cycle.

Front

What is the Milky Way?

Back

A barred spiral galaxy that contains our solar system.