Life of the Cosmos

Dates are not actual, read the title for the actual time


Big Bang

200,000 BC

The Big Bang was the moment when there was a slight irregularity within the singularity holding all matter and space-time within a tiny space of infinite density broke out with all of creation.

10 ^ -35 seconds later

190,000 BC

At this point, the universe is very hot (infinitely hot).
Space and Time come into being.
All the matter in the world exists in a tiny space.
Now begins a period of "inflation".

10 ^ -6 seconds later

180,000 BC

The rate of expansion slows down, but still continues.
Gravity becomes distinct now.
Protons, Electrons, Neutrons, Quarks, and Neutrinos.

3 seconds later

170,000 BC

The nuclei of basic elements start to form.
Hydrogen, Helium, Lithium
It is still too hot for the electrons to join

10,000 years later

160,000 BC

Most of the energy in the universe is a form of radiation.
Light, X-rays, UV rays, Radio Waves
We can still see the aftermath in the CMB (Cosmic Wave Background)

300,000 years later

140,000 BC

Neutral atoms begin to form as the universe cools enough for the electrons to know complete the actual atom.
This is the farthest point back in time that we can "see" because the density of the matter makes the photons transparent.

300,000,000 later

130,000 BC

Gravity has know gathered together dense enough that pockets of gas are starting to form stars
The earliest galaxies are formed.

8,000,000,000 -9,000,000,000 years later

120,000 BC

Our Sun is formed in the Milky Way galaxy

10,000,000,000 years later

110,000 BC

Life begins to appear on Earth

Fate of the Universe

100,000 BC

The fate of the Universe can end up in a Big Freeze, another Big Bang, or an exponentially rising universe that will become nothing but radiation.