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What Is a Supernova?

Answer

A nova happens when a star runs out of energy and collapses in on itself. A supernova what happens when the gravitational pull of the star's core causes it to collapse so quickly and catastrophically that in implodes, then explodes. Supernovas often form black holes. You can find more information here: http://imagine.gsfc.nasa.gov/docs/science/know_l2/supernovae.html
2 Additional Answers
Ask.com Answer for: what is a supernova
A supernova is the explosion of a massive star. Supernovae are extremely bright and create a huge burst of radiation.
Supernovae occur either when the mass of a star's core exceeds the sustainable limit or when nuclear fusion produces more energy than the star can contain. More >>
A supernova is a star that explodes. The explosion can be billions of times as bright as the sun, before it gradually fades from view. It may take a few years to finally fade. You can find more information here: http://www.nasa.gov/worldbook/supernova_worldbook.html
Q&A Related to "What Is a Supernova"
A supernova is the explosion of a star that is dying. Occurring about once every fifty years in a galaxy the size of the Milky Way, supernovas can very briefly outshine entire galaxies
http://answers.ask.com/Science/Astronomy/what_is_a...
Type I Type I supernovas appear likely to manifest from binary stars with certain characteristics. A binary star is actually two stars that orbit each other in close proximity. The
http://www.ehow.com/how_6317775_supernova_.html?re...
A "supernova" is a nova (Latin "new") explosion of a very large star, creating a nebula of illuminated gas that is one of the most visible of all celestial phenomena
http://wiki.answers.com/Q/What_does_a_star_goes_su...
Supernovae:1:a star that explodes and becomes extremely luminous in the
http://www.chacha.com/question/what-is-supernovae
Explore this Topic
A supernova is a massive supergiant star explosion that is more energetic than a nova. A supernova illuminates the galaxy and only fades after several weeks. Although ...
A supernova is an explosion of a star that emits more energy than a normal stellar explosion, or nova. During the brief span of a supernova, more energy is emitted ...
Supernovae are exploding stars. They have a range of different sizes. A super-sized supernova can be the size of 50 suns. Other, smaller supernovae are eight times ...
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