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  1. Dictionary

    su·per·no·va
    [ˈso͞opərˌnōvə]
    noun
    supernovae (plural noun)
    1. a star that suddenly increases greatly in brightness because of a catastrophic explosion that ejects most of its mass.
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    Supernovae are extremely rare – occurring only once every fifty years within a galaxy the size of our own Milky Way. They can only happen when an aging massive star can no longer generate energy from nuclear fusion and undergoes a rapid gravitational collapse.
    www.outerspaceuniverse.org/what-causes-supernova-expl…
    When a supernova occurs the explosion results in the formation of elements such as gold and uranium. This is due to the extremely high temperatures (in the millions of degrees). Supernovas are responsible for the elements such as oxygen, nitrogen, iron and carbon that are found on earth.
    www.softschools.com/facts/space/supernova_facts/2237/
    A supernova happens where there is a change in the core, or center, of a star. A change can occur in two different ways, with both resulting in a supernova. The first type of supernova happens in binary star systems. Binary stars are two stars that orbit the same point.
    www.nasa.gov/audience/forstudents/5-8/features/nasa-kn…
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    Supernova - Wikipedia

    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. The original object, called the progenitor, either collapses to a neutron star or black … See more

    The word supernova has the plural form supernovae (/-viː/) or supernovas and is often abbreviated as SN or SNe. It is derived from the Latin word nova, meaning 'new', which … See more

    Milky Way candidates image
    Observation history image
    Naming convention image

    Supernova discoveries are reported to the International Astronomical Union's Central Bureau for Astronomical Telegrams, which sends out a circular with the name it assigns to that … See more

    External impact image

    Supernovae events generate heavier elements that are scattered throughout the surrounding interstellar medium. The expanding shock … See more

    Classification image
    Overview image

    Compared to a star's entire history, the visual appearance of a supernova is very brief, sometimes spanning several months, so that the … See more

    Current models image

    Astronomers classify supernovae according to their light curves and the absorption lines of different chemical elements See more

    Supernova type codes, as summarised in the table above, are taxonomic: the type number is based on the light observed from the supernova, … See more

    The next supernova in the Milky Way will likely be detectable even if it occurs on the far side of the galaxy. It is likely to be produced by the collapse of an unremarkable red … See more

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  4. What Is a Supernova? | NASA Space Place – NASA …

    Web ResultMar 15, 2024 · A supernova is the biggest explosion that humans have ever seen. Each blast is the extremely bright, super-powerful explosion of a star. An illustration of one of the brightest and most …

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

  6. Supernova Definition & Meaning - Merriam-Webster

  7. What is a supernova? - EarthSky

  8. Supernovae Information and Facts | National Geographic

    Web ResultREFERENCE. Supernovae. Learn more about what happens when stars explode. 3 min read. Some stars burn out instead of fading. These stars end their evolutions in massive cosmic explosions …

  9. What is a supernova? | Space

    Web ResultJun 19, 2023 · A supernova is the explosion of a massive star. There are many different types of supernovae, but they can be broadly separated into two main types: thermonuclear runaway or core …

  10. What Is a Supernova? - Definition and Astronomical Facts

    Web ResultA supernova has a light output that is about a billion or even 10 billion times greater than solar. Therefore, scientists have concluded that the star discovered by Tycho Brahe is a …

  11. Supernova: Definition, Facts And Significance - Science …

    Web ResultOct 19, 2023 · A supernova is a star that has reached the end of its life and has exploded. The light from a supernova can be seen from billions of light years away and is so bright that it can …

  12. SUPERNOVAE | English meaning - Cambridge Dictionary