What is a supernova?


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?"
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
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
Supernovae:1:a star that explodes and becomes extremely luminous in the
(1) Betelgeuse is in the Orion constellation, ~640 light years away from Earth. (2) The resulting core collapse supernova will be bright enough to be visible during the day. (3) Minimal
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