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

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


Posted 8 months ago with 6,283 notes
Tagged:Supernovasupernova explosionAstronomygifastrophysicsstarsupergiantspace

  1. madeoffireandfeathers reblogged this from spaceplasma and added:
    Supernova.
  2. carboncandy reblogged this from cozycosmic
  3. bytetyb reblogged this from cozycosmic
  4. cozycosmic reblogged this from spaceplasma
  5. my-melancholy-mind22 reblogged this from spaceplasma
  6. omnicronos reblogged this from spaceplasma
  7. 1igh7 reblogged this from octopusgardenrevolution
  8. omnicience reblogged this from octopusgardenrevolution
  9. stonerlife1995 reblogged this from lightworker97
  10. i-exhale-bullshits reblogged this from love-me-and-stay
  11. wild-devil-fox reblogged this from gravitationalbeauty
  12. spacequakes reblogged this from gravitationalbeauty
  13. octopusgardenrevolution reblogged this from isafeye
  14. isafeye reblogged this from gravitationalbeauty and added:
    atmospheric
  15. leavesofyourgarden reblogged this from gravitationalbeauty and added:
    do it betelgeuse
  16. fractalfortress reblogged this from gravitationalbeauty
  17. wanderingmyownuniverse reblogged this from theycallme-cowboykelso
  18. irisahern reblogged this from gravitationalbeauty
  19. duhhsaurus reblogged this from gravitationalbeauty
  20. duckyvader reblogged this from gravitationalbeauty
  21. 2broken-4-u reblogged this from mrandmsste
  22. hail-thanatos reblogged this from lunarhythms
  23. hellraising-thunder reblogged this from thebabyshitter
  24. castiels-babysitter reblogged this from luna-dea
  25. pizzakaiju reblogged this from gravitationalbeauty
  26. dance-till-day-break reblogged this from gravitationalbeauty
  27. callumdasexybeast reblogged this from gravitationalbeauty
  28. thebabyshitter reblogged this from lunarhythms
  29. mrandmsste reblogged this from gravitationalbeauty
  30. cronorox reblogged this from gravitationalbeauty