What is Failed supernova?
A '''failed supernova''', also known as an '''unnova''', is the opposite of a [[supernova]]. When a large enough [[star]] runs out of fuel, it turns into a [[Red supergiant star|red supergiant]]. When these stars die, they cause an incredible explosion. This is a [[supernova]]. In the case of a failed supernova, the star will just collapse into a [[black hole]]. It does not explode into a supernova.<ref>{{Cite web|title=How the Universe Works: Stars That Kill|url=https://app.discoveryeducation.com/learn/videos/9af1d3d9-09e0-4970-9bf3-2b52f8f08854/|access-date=2022-05-04|website=app.discoveryeducation.com|language=en}}</ref> Failed supernovas may be a cause of [[Rogue planet|rogue planets]].<ref>{{Cite web|date=17 February 2019|orig-date=last updated 19 March 2022|title=What is an Unnova ?|url=https://www.universeguide.com/fact/unnova|access-date=2022-03-20|website=Universe guide}}</ref> Rogue planets are [[Planet|planets]] without a star. == References == {{Reflist}} {{Supernovae}} {{sci-stub}} [[Category:Stars]]