Supernovas are the explosions of large stars in space.
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.
A supernova is a star saying "The End". The H-R diagram shows they different types of stars by spectral class, color, etc. It was never intended to show the ending of stars. On most H-R diagrams, you will find at the top, or occasionally top right, a place for "Supergiants". Some of those stars will eventually become supernovas. To be absolutely clear: A supernova isn't a type of star - it is the "end" of a type of star.
Supernovas release a wide range of electromagnetic radiation, including visible light, X-rays, and radio waves. This emission is a result of the intense energy and heat created during the explosion of a star.
Of course, supernovas are fatal. Even if they're several thousand miles away from us, they can kill us from escaping radiation, but in a very slow manner. The chances of a supernova actually happening near us is very unlikely.
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.
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
The Universe - 2007 Supernovas 2-9 is rated/received certificates of: Australia:G
Supernovas. A 'shooting star' is not a star at all, it is a meteor glowing as it enters the earth's atmosphere.