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AUBREY DUNHAM

SUPERNOVAE
by

maryann carroll

on 9 June 2016

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Transcript of AUBREY DUNHAM

SUPERNOVAE
The Crab Nebula is a exploded supernova in the constellation Taurus .
The Crab Nebula is expanding with a velocity of 1200 km a second or 745 miles a second .
the supernova it came from was noted in 1054 AD by Tycho Brahe . That was 400 years ago!
how do supernovae work?
Energy in a big star is thrown off by its nuclear furnace (core) that can no longer resist the inward pull of gravity . Smaller stars contract into white dwarf stars and slowly fade away. The larger stars contract and expand and blow up , making dust particles ,gases and chemicals fly out into outer space . Those particles create new planets and stars .A supernova may radiate more energy in a few days than the sun does in a 100 million years. Small stars however, collapse and get hot when they run out of nuclear fuel making a white dwarf star that will last for a while longer.

Bibliography
what are supernovae?
supernovae are the most violent events (in space).
They can be as bright as their home galaxy, sometimes even brighter.
the violent death of stars.
BY AUBREY DUNHAM
<=The Crab Nebula
the crab nebula :
.nasa.gov

.go.grolier.com

THE END!!!!
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