1. The Scientific explanation for the forming of the universe.
Big Bang Theory
The Scientific explanation for the forming of the universe.
Mind Blowing

2. The Big Bang Theory

3. Time begins The universe begins ~13.7 Billion years ago
The universe begins as the size of a single atom
The universe began as a violent expansion
All matter and space were created from a single point of pure energy in an instant

4. ~ 3 minutes after big bang
The universe has grown from the size of an atom to larger than the size a grapefruit
Energy forms into matter due to cooling (E=mc2 )
This matter is mostly in the form of protons, neutrons, and electrons.
These parts later form into atoms

5. ~ Several hundred thousand years after Big Bang
ATOMS form (specifically Hydrogen with a small amount of Helium.)
The early Universe was about 75% Hydrogen and 25% Helium. It is still almost the same today.

6. Periodic Table (Then and Now)

7. ~200 to 400 million years after Big Bang
1st stars and galaxies form
This also happens due to gravity.

8. ~ 4.6 billion years ago (9 Billions since Big Bang)
Our Solar system forms

9. Misconceptions about the Big Bang
there was no explosion; there was (and continues to be) an expansion
Rather than imagining a balloon popping and releasing its contents, imagine a balloon expanding: an infinitesimally small balloon expanding to the size of our current universe
Expanding Balloon Demo

10. Big Bang evidence Universal expansion and Hubble’s Law
Most galaxies are moving away from each other.
Law of Conservation of Energy
Energy can’t be created nor destroyed.

11. Big Bang evidence 3. Quasars
Found in the center of distant galaxies.
Caused by a giant black hole.
They are very bright.
Brightness is caused by light and gases spiraling while being pulled into the black hole.

12. Big Bang evidence 3. Quasars cont...
Only found billion light years away
Found nowhere else
Nothing exists past them
They are the EDGE of the Universe. (scientists hypothesize)

13. 4. Speed of light and stellar distances
Light Years: The distance a ray of light would travel in one year (6 trillion mi, 9.4 trillion km)
We observe stars millions/billions of light-years away
A light-year is the distance that light travels in 1 year – the light we see today from a star 500 light years away is 500 years old
The furthest stars away are billion light years away
We have telescopes that can see further, but there isn’t anything viewable

14. 5. Stellar formation and evolution
We observe the life cycles of stars across the universe using tools such as satellites and telescopes
we view stars form, burn and explode
This is how the elements on the periodic table along with new stars form.

15. LASTLY – we are pretty sure everything has a beginning, right?
Even though there is much evidence for the Big Bang, scientists are still trying to find an explanation of what actually caused the Big Bang.

16. Click Here: Big Bang to Earth Video
Watch from: 0:00-16:00
Big Bang
Galaxies
Stars
Earth
Moon