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Supernovae Information and Facts National Geographic ~ These stars end their evolutions in massive cosmic explosions known as supernovae When supernovae explode they jettison matter into space at some 9000 to 25000 miles 15000 to 40000
What Is a Supernova NASA Space Place – NASA Science for ~ A supernova of a star more than about 10 times the size of our sun may leave behind the densest objects in the universe—black holes The Crab Nebula is the leftover or remnant of a massive star in our Milky Way that died 6500 lightyears away
supernova Definition Types Facts Britannica ~ Supernova any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level When a star ‘goes supernova’ considerable amounts of matter may be blasted into space with such a burst of energy as to enable the star to outshine its entire home galaxy
List of supernova candidates Wikipedia ~ Type II supernova progenitors include stars with at least 10 solar masses that are in the final stages of their evolution Prominent examples of stars in this mass range include Antares Spica Gamma Velorum Mu Cephei and members of the Quintuplet Cluster
Star Lifecycle – Supernovas ~ These things are called Lifecycle and Supernova Lifecycle Life of a Star Supernova Death of a Star Stars do not live forever They live and die just like us Although after its birth the star lives for a very very long time before its death The type and mass of a star will determine how long the star will live for through its lifecycle before the star goes supernova
Stars Science Mission Directorate ~ In a supernova the stars core collapses and then explodes In massive stars a complex series of nuclear reactions leads to the production of iron in the core Having achieved iron the star has wrung all the energy it can out of nuclear fusion fusion reactions that form elements heavier than iron actually consume energy rather than produce it
Supernovae NASA ~ These supernovae occur at the end of a massive stars lifetime when its nuclear fuel is exhausted and it is no longer supported by the release of nuclear energy If the stars iron core is massive enough it will collapse and become a supernova
What Is a Supernova NASA ~ A supernova is the explosion of a star the largest explosion that takes place in space
What Is a Supernova Discovery Death and Explosions Space ~ Type Ia supernovae are generally thought to originate from white dwarf stars in a close binary system As the gas of the companion star accumulates onto the white dwarf the white dwarf
Supernova Wikipedia ~ Type Ibc and IIL and possibly most Type IIn supernovae are only thought to be produced from stars having nearsolar metallicity levels that result in high mass loss from massive stars hence they are less common in older moredistant galaxies
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