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Red giants - As they near the end of their life they will "shed" their outer layers, returning material back into the Universe as a planetary nebula.
Supernova - they seed the Universe with heavy elements - metallicity, which when formed into "newer" stars has the effect of making them "burn" slower.
Supernova are also one manner in which dust clouds get that "nudge" to start forming protostars.
What else can I help you with?
What actually are Supernovas?
Supernovas are the explosions of large stars in space.
What are uses of supernovas?
Supernovas have multiple uses, including producing heavy elements like gold and silver, dispersing these elements into space for future star formation, and creating shockwaves that trigger the collapse of nearby gas clouds to form new stars. They also release vast amounts of energy and radiation that can be studied to better understand the life cycle of massive stars and the evolution of galaxies.
Should you be worried about 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.
Why do supernovas not appear on the HR diagram?
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.
How do you think the formation of the new stars is related to supernovas and planetary nebulae?
The formation of new stars can be triggered by the shock waves and turbulence generated by supernovas, which compress gas and dust, leading to new star formation. Planetary nebulae are formed from the outer layers of certain types of stars when they reach the end of their life cycle. These nebulae can enrich the surrounding interstellar medium with elements necessary for forming new stars.
Do stars create supernovas?
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.
What actually are Supernovas?
Supernovas are the explosions of large stars in space.
Will a red giant star end as a supernova?
Not exactly. Red giants become white dwarf stars. It is the red supergiants that can become supernovas.
How do binary stars differ form the supernovas and novas?
binary stars are two stars that orbit each other while supernovas and novas stars are stars that explode when it runs out of fuel
Are supernovas stars planets colored?
No. Supernovas are cataclysmic eruptions from massive stars that have come to the end of their lives. See related questions
Are exploding stars called shooting stars or supernovas?
Supernovas. A 'shooting star' is not a star at all, it is a meteor glowing as it enters the earth's atmosphere.
Can Supergiant stars lead to supernovas?
yes
What is the type oldest stars called?
supernovas
Why are supernovas called supernovas?
They are not. A supernova is an explosion of a star. Blue stars usually end their lives in such explosions.
Flickering neutron stars formed in supernovas?
pulsars
Describe the life cycle of a very massive star from the red giant phase onward?
Stars that are massive enough are unlikely become red giants; instead they will destroy themselves as type II supernovas.
Why are blue stars called supernovas?
They are not. A supernova is an explosion of a star. Blue stars usually end their lives in such explosions.
