Final answer:
The Solar Nebula, a giant gas and dust cloud, formed our solar system. The material within the cloud collapsed under its own gravity, creating our Sun and other solar system objects. The process also forms other exoplanet systems.
Step-by-step explanation:
Our solar system formed from a giant gas and dust cloud known as the Solar Nebula. This was an enormous, rotating cloud of vapor and dust, with material that collapsed under its own gravity towards the center, creating an increasingly hot, concentrated area, which led to the formation of our Sun. The remainder of the giant gas and dust cloud, the outer parts, eventually formed smaller objects such as the planets, their moons, and other debris such as asteroids and comets.
In the Solar Nebula, material coalesced to create planetesimals, the precursors of planet. Over time, these planetesimals gathered together to make the planets and moons. Astronomers believe that a similar process happens in circumstellar disks around other stars, leading to the formation of their own planetary systems.
Learn more about Solar Nebula