WELL, a supernova is a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
ARE WE ALL GOING TO DIE!?!?
No you aren't!!! The Supernova occurs every 100 years and from my research it could probably destroy the ozone.
The various planets are thought to have formed from the solar nebula, the disc-shaped cloud of gas and dust. The currently accepted method by which the planets formed is accretion, in which the planets began as dust grains in orbit around the central protostar.
Scientists believe that the solar system was formed when a cloud of gas and dust in space was disturbed, maybe by the explosion of a nearby star called a supernova!!!