A Cosmic Simulation, showing the birth and growth of stars and planets.

You can freely download the PlanetoGenesis program. Before you do, first read the copyright statement.

Here is the story.

In the Beginning was the Cloud.

And the Cloud was without form and close to void.

But the Cloud was a tiny amount of gas, dust, rubbish & filth.

All this was mainly garbage coming from Stars that had Passed aWay.

Actually it was not really the Beginning, as it was somewhat like eight billion years After Big Bang (ABB).

Maybe nine.

Anyway, the Cloud was.

And the Cloud was cold, and there was no light.

Darkness filled the Cloud.

The absence of all rotation would have been extremely unlikely. Next to impossible.

Hence the Cloud rotated slowly and majestically.

Gravity filled the Cloud.

Due to rotation, the Cloud flattened.

Thus it began to look like a Pizza.

An extremely large Pizza, as the Cloud was more than a million light years in size.

Due to Gravity, the Cloud slowly contracted.

Due to contraction, rotation increased.

Due to rotation & contraction, specks of dust & rubbish collided. Sticking together, they merged to larger rocks.

Seventeen Aeons went by of Cloud shrinking, specks colliding & rocks merging.

Nobody knows how long an Aeon lasts. So seventeen seems like a safe guess.

Rocks the size of Mountains came to be.

Mountain-sized rocks melted together again & again & again.

Mountains grew & grew.

A few grew gigantic.

Gravity within built up, creating high pressure & temperature inside.

Very, very high, so even the atoms inside began to glue together.

Due to this atomic fusion, Light was sent out.

Thus, brightly shining Stars were born.

And the Cloud was filled with Light.

Other rocks were smaller, and no atomic fusion started there.

But the gravity inside pulled them to globes anyway.

Thus, Planets were born, circling the young Stars and reflecting their Light.

Moons were born, circling the newborn Planets.

Five billion years later, Humans were born.

The Cloud was filled with their Laughter.

But this the Computer Program does not make heard.

For PlanetoGenesis is a very simple Program, it cannot calculate Humans.

But it can calculate some Stars & Planets & Moons.

Due to Randomness, the Stars will be different, each time the Program starts.

Usually it starts with Two Thousand pieces of dust. But if you wish a different beginning, you can tell the Program & it will obey.