Web Results

Supernova

en.wikipedia.org/wiki/Supernova

A supernova is an astronomical event that occurs during the last stellar evolutionary stages of a massive star's life, whose dramatic and catastrophic destruction ...

What Is a Supernova? | NASA

www.nasa.gov/audience/forstudents/5-8/features/nasa-knows/what-is-a-supernova.html

A supernova is the explosion of a star -- the largest explosion that takes place in space.

What Is a Supernova? - Space.com

www.space.com/6638-supernova.html

Jan 27, 2014 ... This Chandra X-ray photograph shows Cassiopeia A (Cas A, for short), the youngest supernova remnant in the Milky Way.

What is a supernova, and what can it tell us about the universe?

hubblesite.org/reference_desk/faq/answer.php.id=30&cat=stars

A supernova is the explosive death of a star, which unleashes a burst of light through the cosmos. Supernovas happen in two different ways: When massive stars ...

www.ask.com/youtube?q=What Is a Supernova?&v=iNPikOAYonM
Oct 14, 2012 ... A short video made for my physics assignment about supernovas. West Island School Year 11 Oct 14 2012 Credits Music: Finale - Madeon ...

What are Supernovae?

spider.ipac.caltech.edu/staff/vandyk/supernova.html

Currently, supernovae are only seen in galaxies other than the Milky Way. We know that supernovae have occurred in our Galaxy in the past, since both Tycho  ...

ESA - Space for Kids - Our Universe - Supernovas

www.esa.int/esaKIDSen/SEMBG13VRRE_OurUniverse_0.html

Every now and again our Milky Way galaxy is lit up by a huge explosion. Known as a supernova, this violent event marks the death of a supergiant – a ...

Supernovae - HyperPhysics

hyperphysics.phy-astr.gsu.edu/hbase/astro/snovcn.html

A supernova is an explosion of a massive supergiant star. It may shine with the brightness of 10 billion suns! The total energy output may be 10<sup>44</sup> joules, ...

What is a Supernova? - Universe Today

www.universetoday.com/56533/what-is-a-supernova/

Feb 18, 2010 ... Supernovae aren't new stars in the sense that they were not stars before they became supernovae; the progenitor – what the star was before it ...

Supernovas, Supernovae Information, Exploding Star Facts, News ...

science.nationalgeographic.com/science/space/universe/supernovae-article/

Some stars behave as if it's better to burn out than to fade away. These stars end their evolutions in massive cosmic explosions known as supernovae.

Answers
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 >>