A Supernova explosion will seed the surrounding space with all of the elements created by nuclear fusion in the various layers of the star that preceded the explosion. Nuclear fusion produces less and less energy the heavier the elements used. Once a supergiant star develops a core of Iron and Nickel 56 there is little or no energy being produced by fusion and the star collapses under its own gravitational force causing extreme heat and pressure and then a rebound explosion. This happens in seconds or less. Other products of this supernova are radiation and sub-atomic particles. The heaviest elements produced (Iron and Nickel) accrue neutrons thereby increasing their atomic weight and number and producing heavier and heavier elements. The heavier an element (or metal), the more rare it is. Neutron acquisition can be be either rapid (R-process) or slow (S-process).
Supernovas are the explosions of large stars in space.
No, only small ones, the supermassive ones are at the centre of galaxies.
No, they are much smaller.
The explosions of supernovas
No, you should not be worried about supernovas. While they are powerful explosions of dying stars, they are typically far enough away from Earth to pose any direct threat to us.
no
Stars do not create supernovas. Supernovas happen to stars. A supernova is when a star, bigger than our own sun, explodes due to the lack of gas they need.
A supernova will create the pulsar.See related question.
Supernovas are the explosions of large stars in space.
No, only small ones, the supermassive ones are at the centre of galaxies.
Star Dust from supernovas is what makes technically 'everything' in the Universe.
They are not. A supernova is an explosion of a star. Blue stars usually end their lives in such explosions.
In space.
A great energy and light is produced by the supernovas. Therefore, a great number of photons is produced.
Yes.
gases.
No. Supernovas are cataclysmic eruptions from massive stars that have come to the end of their lives. See related questions