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  2. Supernova - Wikipedia

    en.wikipedia.org/wiki/Supernova

    A supernova (pl.: supernovae or supernovas) is a powerful and luminous explosion of a star. A supernova occurs during the last evolutionary stages of a massive star, or when a white dwarf is triggered into runaway nuclear fusion.

  3. A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star.

  4. NASA, Global Astronomers Await Rare Nova Explosion

    www.nasa.gov/centers-and-facilities/marshall/...

    Don’t confuse a nova with a supernova, a final, titanic explosion that destroys some dying stars, Hounsell said. In a nova event, the dwarf star remains intact, sending the accumulated material hurtling into space in a blinding flash.

  5. Nova explosion will be visible to naked eye in rare ...

    www.nbcnews.com/science/space/nova-explosion-new...

    The event, known as a nova, will be so bright that a “new” star will seem to appear in the night sky temporarily, visible to the naked eye. Artist's concept of a star system featuring a white ...

  6. What is a supernova? | Space

    www.space.com/6638-supernova.html

    A supernova is what happens when a star has reached the end of its life and explodes in a brilliant burst of light. Supernovas can briefly outshine entire galaxies and radiate more energy than...

  7. Supernova | Definition, Types, & Facts | Britannica

    www.britannica.com/science/supernova

    supernova, any of a class of violently exploding stars whose luminosity after eruption suddenly increases many millions of times its normal level. The term supernova is derived from nova (Latin: “new”), the name for another type of exploding star. Supernovae resemble novae in several respects.

  8. What is a supernova? - EarthSky

    earthsky.org/.../definition-what-is-a-supernova

    A supernova is the name given to the cataclysmic explosion of a massive star at the end of its life. It can emit more energy in a few seconds than our sun will radiate in its lifetime of...