The Big Bang Theory Unit 2024

Front

What are spiral nebulae now known as?

Back

Other galaxies.

Front

What evidence supports the Big Bang Theory?

Back

There is microwave background radiation coming from all parts of the universe.

Front

How thick is our galaxy in light-years?

Back

About 1000 light-years.

Front

What is the largest unit of measurement for distance in space?

Back

Parsec.

Front

What is the composition of the universe in terms of normal matter, dark matter, and dark energy?

Back

About 70% Dark Energy, about 25% Dark Matter, and about 5% Normal Matter.

Front

What is the significance of microwave background radiation?

Back

It provides evidence for the Big Bang Theory.

Front

What is a parsec?

Back

A unit of measurement used to measure astronomical distances, equivalent to about 3.26 light-years.

Front

What is dark energy?

Back

A mysterious form of energy that makes up about 70% of the universe and is responsible for its accelerated expansion.

Front

What is dark matter?

Back

A form of matter that does not emit light or energy, making it invisible, and constitutes about 25% of the universe.

Front

What is the observable universe?

Back

The part of the universe that we can see and measure, which is limited by the speed of light.