About Universe | Big Bang | universe facts | science facts | creation of universe

BigBang

The Universe is everything we can see, and a lot that we can't see. It was created in the Big Bang explosion and has been changing and expanding ever since.

How old is the Universe?  

The universe is about 13.7 billion years old. At its beginning, it looked nothing like it does today.
Yet, everything in today's universe did exist in some form back then. It all started with the Big Bang, a kind of explosion that would not only go on to produce all the matter in the universe but also marked the start of time.

Elements in the sun.                         ⮞

1. Everything in the universe produces energy- you produce energy when you exercise and light energy is produced by the nuclear reaction inside stars.

2. The Universe is expanding by about 70 km (43 Miles) every second.

3. All the elements on earth, including all the elements in your body, were produced in stars.

4. The elements in the universe today were produced from the elements created in the big bang. And all the elements which are presented in the periodic table have come from the universe after the big bang occurs.

What's in the name?

The term "Big Bang" was coined by Fred Hoyle in 1950 to illustrate to his radio listeners the difference between it and his own theory.

"Steady State" where the Universe has no beginning.

Australopithecus skull

Human origins
5 billion years ago
The sun formed from hydrogen and helium and small amounts of other elements.
4.5 billion years ago
Some of the materials not used up in the sun joined together to form Earth.
About 3.7 billion years ago
carbon-containing molecules in 

young Earth's oceans evolved into 

bacteria-like cells; the first forms 

of primitive life.
1 million years ago
The first humans walked on Earth.

                                                              

How to : create the Universe

01. Start time with a Big Bang - a massive explosion that lasts or less than one trillionth of a second that will create tiny particles of radiation smaller than the size of a  full stop.

02. Wait 380,000 years for the first atoms to form a mix that is 76 % hydrogen and 24% helium.

03. After 1 billion years check that the first stars were formed, and there are dwarf galaxies throughout the Universe.

04. When the Universe is 3 billion years old, merge small galaxies form massive ones.

05. When 9 million years old, form our solar system in the Milky Way Galaxy.

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