Star formation starts in a nebula.
A nebula develops into a solar system through the process of gravitational collapse. As the nebula contracts due to gravity, it starts to spin and flatten into a spinning disk. Within this disk, the material begins to clump together and form planetesimals, which eventually coalesce to form planets, moons, and other objects in the solar system.
Gravity is the force that holds matter in a nebula together. As the nebula contracts under its own gravity, the particles begin to clump together, eventually forming stars and other celestial bodies.
Stars, planets, solar systems, many objects in space can start as a large unstructured nebula of gas and dust, which can coalesce into massive objects under gravitational influence.
Under the influence of its own gravity, a nebula contracts, spinning faster and faster as it does. This is called is called conservation of angular momentum. Because of the spinning, the nebula flattens out to form a disk. As it continues to flatten and spin, it becomes denser and hotter, particularly in the center. This dense, hot center eventually forms into a star, the sun. The swirling mass destined to become a solar system is usually referred to as the solar nebula.
A nebula.
Star formation starts in a nebula.
As a nebula, a cloud of gas and dust.
nebula? navicular
the horsehead nebula
A supernova occurs.
A supernova occurs.
A nebula develops into a solar system through the process of gravitational collapse. As the nebula contracts due to gravity, it starts to spin and flatten into a spinning disk. Within this disk, the material begins to clump together and form planetesimals, which eventually coalesce to form planets, moons, and other objects in the solar system.
begins to collapse under its own gravity due to a disturbance, such as a shockwave from a nearby supernova. As the nebula collapses, it heats up and the particles within it start to come together, initiating the formation of a protostar.
a nebula
Nebula
it contracts together to were it can't hold any more.