[Music] what do you call the death of a star well that's an easy one it's called a supernova super know what supernova kitty oh you've never heard of that word before kitty no well there's no need to worry my dear when dr binox is here so let me grab this opportunity and teach you and our friends out there about this natural phenomenon called supernova zoom in stars they come in all colors shapes and sizes like the blue giant red giant red super giant even our sun is a type of star called g2v yellow dwarf but despite these differences most of them meet their end with a supernova so what is a supernova well a supernova is a massive explosion that takes place at the end of a star's life cycle in other words it is the death of a star but the vital question is what causes this explosion aka a supernova well a supernova occurs when there is a change in the core or center of a star this change can happen in two different forms with both resulting in a supernova first let us look at the type of supernova that happens in the binary star systems that consist of two stars orbiting around their common center of mass during the process one of the stars a carbon oxygen white dwarf takes matter from its partner star eventually the white dwarf gathers so much matter that makes it difficult to digest and causes the star to blast resulting in a supernova the other type of supernova happens at the end of a single star's lifetime as the star runs out of nuclear fuel some of its mass flows into the core eventually the center part of the star is so heavy that it cannot withstand its own gravitational force and it becomes like a nuclear time bomb finally the core collapses and all the matter and radiation blast out which results in the monstrous eruption we call a supernova but fortunately not all stars end with a supernova even our own sun is a single star but it does not have enough mars to become a supernova or else it would have been a significant threat to our solar system that includes our earth trivia time did you know a supernova burns for only a short duration but it can tell scientists a lot about the universe yes one kind of supernova has revealed to scientists that we live in an expanding universe one that is growing at an ever increasing rate scientists also have discovered that supernova play a vital role in spreading elements all around the universe yes when the star bursts it shoots elements and debris into space many of the elements we find here on earth are made in the core of stars these elements travel on to form new stars planets and everything else in the universe it's question time today's question is what do you call that massive explosion that takes place at the end of a star's life cycle do write your answer in the comments section below and hit the like and subscribe button if you haven't yet to be a part of the peekaboo kids cutesy viewersy family and get a chance to get it featured by the end of our videos so here are the winners of the previous episode hope you enjoyed today's episode until next time it's me dr binox zooming out [Music] ah never mind hey kids you liked my videos didn't you before you go don't forget to click on the subscribe button and the bell so you won't miss out on my latest videos see you you