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supernova    音标拼音: [s,upɚn'ovə]
n. 超新星

超新星

supernova
n 1: a star that explodes and becomes extremely luminous in the
process


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  • Supernova - Wikipedia
    A supernova (pl : supernovae) 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
  • Supernova | Definition, Types, Facts | Britannica
    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
  • What Is a Supernova? | NASA Space Place – NASA Science for Kids
    A supernova of a star more than about 10 times the size of our sun may leave behind the densest objects in the universe— black holes The Crab Nebula is the leftover, or remnant, of a massive star in our Milky Way that died 6,500 light-years away
  • What Is a Supernova: Causes, Types, and Remnants
    A supernova is the explosive death of a star, releasing more energy in a few weeks than our Sun will produce over its entire 10-billion-year lifetime At peak brightness, a single supernova can match the light output of an entire galaxy, reaching an absolute magnitude of about -19 5
  • Astronomers witness colossal supernova explosion create one of the most . . .
    Astronomers have discovered that the birth of neutron stars with magnetic fields trillions of times stronger than Earth's magnetosphere is the "magic trick" behind superbright supernovas
  • What Is a Supernova? Definition, Types, and Famous Examples
    What is a supernova? Learn how massive stars explode, the types of supernovae, and the famous cosmic events captured by astronomers
  • What Is a Supernova: Types, Facts, and Famous Explosions
    What is a supernova explained simply? Learn how stars explode, the types of supernovae, what they leave behind, and the most famous supernovae in history
  • What is a supernova? - EarthSky
    A supernova is a star's colossal explosion at the end of its life, which can outshine its entire galaxy Read about causes and types of supernovae here
  • What is a Supernova? The Explosive Death of Stars and Its Cosmic Impact
    When certain stars die, they do not simply fade away They explode This tremendous stellar explosion is known as a supernova It is one of the most powerful phenomena in the universe, capable of releasing more energy in a single moment than an entire galaxy emits over long periods of time
  • Supernova - ESA Hubble
    Supernova explosions are spectacular exceptions to that rule Several different pathways can lead to a supernova explosion, one of which is the death of a supermassive star





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