How big is a supernova?

Answer

A supernova is said to be greater than an atomic bomb. Once a supernova occurs, there is enough energy remaining to run an entire galaxy.
Q&A Related to "How big is a supernova?"
Currently the expanding cloud from the supernova remnant is about 10 light years across.
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A supernova can be any size! There are some that are 150 times larger than our sun and some
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1. Accumulate more than 3.2 times the sun's mass worth of hydrogen gas. (The 3.2 figure is called a Chandrasekhar limit, and refers to amounts of initial mass that determine a star's
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New Zealand, a nation comprised of several islands in the southwest Pacific Ocean east of Australia, has about 103,454 square miles of land. The nation is home to about 4.5 million
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1 Additional Answer
A supernova, when it explodes, is capable of outshining a whole galaxy. Supernovas happen when a star is close to death. When they explode they leave many particles of gas that create new stars. You can find more information here: http://library.thinkquest.org/C004580/anomalies/snova.html
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