Supernova

A supernova is the explosion of a massive star.

Supernovae come in several types: Type I is caused by sudden nuclear burning in a white dwarf star. Type Iax is a faint supernova occurring in young binary systems.

Type II is caused by the collapse of the core of a supermassive star at the end of its nuclear-burning life. The star is destroyed and for a moment it shines brighter than the entire galaxy's stars put together.

The event of a supernova spawns new stars and spreads heavier elements into space, essential for life.

See also

• nova
• supernova remnant
• hypernova