• gif space star Astronomy astrophysics supernova supergiant supernova explosion spaceplasma •
gif space star Astronomy astrophysics supernova supergiant supernova explosion

Supernova explosion (artist’s impression)

One of the most massive cosmic explosive events in the universe is a supernova. A supernova is the violent death of a luminous supergiant star. These blindingly bright star bursts occur at the end of a star’s lifetime, when its nuclear fuel is exhausted and it is no longer supported by the release of nuclear energy.

If the star is particularly massive, then its core will collapse and in so doing will release a huge amount of energy. This will cause a blast wave that ejects the star’s envelope into interstellar space. Astronomers originally classified supernovae into two “types”, I and II. Type I had no hydrogen emission lines in their spectra whereas Type II exhibited hydrogen emission lines. Later it was realized that there were in fact three quite distinct Type I supernovae, now labelled Type Ia, Type Ib and Type Ic.

Supernovae play a fundamental role in a great cosmic recycling program. We believe that almost all of the elements in the Universe that are heavier than hydrogen and helium are created either in the centres of stars during their lifetimes or in the supernova explosions that mark the demise of larger stars.


Image Credit: freeara


report
5684 notes / 4 years 2 months ago
gif space star Astronomy astrophysics supernova supergiant supernova explosion
gif space universe star science Astronomy supernova
gif space nebula stars animation History explosion science evolution Astronomy astrophysics Hubble supernova esa crab nebula
space nebula nature science 2008 Astronomy astrophysics astrophotography veil supernova remnant
space nebula science Astronomy astrophysics supernova
gif 1k space stars explosion supernova the universe hypernova how the universe works supernovae hypernovae
space science Astronomy astrophotography
my gif gif star gifset digital art Cosmos Astronomy supernova Star death
space nebula universe science news Cosmos Astronomy supernova astrophotography cosmology
photography trippy beautiful sky space starry explosion star science Astronomy nasa psychadelic apod pink star supergiant Space pics wofl rayet
photography beautiful space galaxy nebula stars earth universe science eagle Astronomy astrophysics nasa Hubble supernova astrophotography Eagle Nebula esa eso constellation hubble telescope
landscape space science Astronomy bi color