What is formed after the dust and material from a supernova event?

After a supernova event, the explosion disperses dust and material into space, which can lead to the formation of a new nebula. A nebula is essentially a vast cloud of gas and dust, which can serve as a reservoir for the building blocks of new stars and planetary systems. The materials expelled during the supernova enrich the interstellar medium, providing the necessary elements to create new celestial bodies.

While other options like a protostar, black hole, and neutron star can result from stellar evolution and end stages of massive stars, they represent different scenarios. A protostar is formed from a collapsing cloud of gas and dust, which often originates from a nebula. A neutron star is the remnant of a supernova explosion of a star between certain mass limits, while a black hole is formed when a massive star collapses under its own gravity after a supernova, but this is not immediate; the material must first form a nebula before further processes can lead to those outcomes. Thus, a new nebula is the most direct result of the dispersal of material after a supernova.