Solar System Formation
Our solar system is made from the solar nebula. Hydrogen and helium float around in space in clouds. These clouds rotate very slowly. As a common center of mass forms, the gas is attracted inwards towards the center. The center heats up as pressure increases until thermonuclear fusion occurs, and a star is born. As more of the cloud is sucked in, it picks up speed in the direction it was spinning, much like a figure skater who pulls their arms in. Centrifugal force turns this rotating mass into a disk, or the PROTOPLANETARY DISK. This disk is the solar system.