Space is a boundless, three-dimensional expanse in which objects reside and events take place. Many experts consider space as a separate entity while others define it simply as a conceptual framework. Regardless of what space is, it is an amazing place where many bizarre phenomenons occur:
Hypernova is an extreme form of supernova and it occurs when a very massive star collapses. This kind of stars is very rare and hypernova may occur every 200 million years on average galaxies like Milky Way.