What forms when nebulae particles join?

When particles in a nebula join together, they can form larger structures such as stars and planets through a process called accretion. As these particles clump together due to gravitational attraction, they increase in mass and density, eventually leading to nuclear fusion in the core of a star. Surrounding material may also coalesce to form protoplanetary disks, from which planets, moons, and other celestial bodies can develop. This process is fundamental to the formation of solar systems.