Why do supernovas happen?

Answer 1

Throughout most of its life, a star maintains a delicate balance between the inward force of its own gravity and the outward force of pressure created by fusion. If this balance is disturbed a star will collapse.

Very massive stars can fuse elements up until iron. Once a star begins fusing iron, this absorbs energy rather than releasing it. There is no longer any energy being released to support the star, so the core collapses under its own weight as the outer layers explode violently outward. This is a supernova. The extreme heat generated by a supernova is responsible for fusing elements heavier than iron, up until uranium.

Answer 2

The star is like a factory always producing new minerals from the fusion. Then it makes iron. The star-killed, ultimate mineral of the universe. a few seconds after a star makes iron it absorbs all of the energy in the star and gravity crushes it then it explodes with the power of 8.5mil atom bombs. all that is left is a neutron star.

Answer 3

A supernova occurs when the star is at least 10 times more massive than our sun, and it has gone through its period of Nuclear Fission converting Hydrogen to Helium and Helium to iron, when it finally runs out of fuel, a supernova occurs, and than depending on the mass of the star several things can happen, it either Explodes, or Implodes creating a black hole..

hpe u understood so frnds..:-D

Answer 4

Supernovae occur at the end of a massive star's lifetime when it's nuclear fuel is exhausted and it is no longer supported by the release of nuclear energy.

Answer 5

a super nova is a dieing star. they explode when they die so that makes a supernova!

Answer 6

Several types of supernovae exist. Types I and II can be triggered in one of two ways, either turning off or suddenly turning on the production of energy through nuclear fusion

Answer 7

Supernovas occur when a star is at the end of its life, when it's nuclear is exhausted and it is no longer supported by the release of nuclear energy.