Please enable JavaScript.
Coggle requires JavaScript to display documents.
Nebular Theory (Galaxies (How it happend (A galaxy starts with a nebula…
Nebular Theory
Galaxies
How it happend
A galaxy starts with a nebula which is a giant cloud of dust and rocks with hydrogen and helium, which was left behind from the big bang.
The gravity brings all of the stuff from the nebula and it rotates and starts to form a disk shape which is where the galaxy is starting.
After the galaxy is formed all of the the left over material becomes more dense and the pressure and the temperature increase.
When the center of this big clump starts to heat up in the center and it gets hot enough nuclear fusion begins which forms a star.
On the outer part of the disk shape thing we call a galaxy more dust and rocks start to make bigger clumps and the gravity starts to push all of the stuff together to make stars.
Stars
The nebula which was a giant cloud of gas and dust started to form a disk. #
The gravity pulled all of the dust and gas into these clumps that were like balls. #
These balls of dust and gas were forming core and it started to heat up with the nuclear fusion to make a star. #
When these stars have lived their full life they explode and they started to make humans from the star's parts on the planet earth. #
-