Big Bang Facts for Kids

20 Big Bang Facts For Kids

1. The Big Bang is the leading theory for the origin, expansion, and evolution of the Universe.
2. The Big Bang theory is a simple concept, around 13.8 billion years ago our entire universe started from a single point.
3. Belgian astronomer and mathematician Georges Lemaitre was the first person to come up with the theory known as the Big Bang in 1927. However, Lemaitre didn’t call his theory the Big Bang, he called it the hypothesis of the primeval atom.
4. American astronomer Edwin Hubble made comprehensive observations that proved galaxies are moving away from each other in 1929. This would become known as Hubble’s law and help support Lemaitre’s theory.
5. English astronomer Fred Hoyle coined the term “Big Bang theory” during a radio broadcast on March 28th, 1949. What is ironic about Hoyle terming this phrase is he had a competing theory known as the Steady State theory.
6. The Universe is still expanding today, more than 13.8 billion years after the Big Bang.
7. The Universe is expanding at a rate of 163,000 miles per hour, that is more than 14 billion miles every 24 hours.
8. Astronomers believe the Universe may expand forever and one day in the very distance future galaxies will be to far away from one another to be visible.
9. 1 picosecond after the Big Bang occurred, space and time began.
10. 300,000 years after the Big Bang occurred some of the first atoms began to form.
11. 150 million years after the Big Bang the first stars, like The Methuselah Star (HD 140283), began to form.
12. 500 million years after the Big Bang the first black holes, like J0313-1806, began to form.
13. 700 million years after the Big Bang star formation began to accelerate and heat up the Universe.
14. 800 million years after the Big Bang the first galaxies, like GN-z11, began to form.
15. 1.2 billion years after the Big Bang our Milky Way galaxy began to form.
16. 2.8 billion years after the Big Bang the formation of stars in the Universe peaks.
17. 7 billion years after the Big Bang the nearest star to Earth, Alpha Centauri, began to form
18. 9.2 billion years after the Big Bang our Sun and Solar System began to form.
19. 9.9 billion years after the Big Bang life begins to emerge on planet Earth.
20. 13.8 billion years after the Big Bang the entire Universe has expanded to a size of 93 billion light-years.

Big Bang Pictures

Pictures are one of the best ways for people to learning about something. That is why we are providing you with the below images to help you with your research on the Big Bang. Below you will find three pictures that represent the Big Bang. These pictures should help you better understand the Big Bang and what it look like.

An illustration of the Big Bang.

A picture of an example of the Big Bang.

A picture of concept of the birth of the universe.