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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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  • What Is a Supernova? - Space
    Supernovas can briefly outshine entire galaxies and radiate more energy than our sun will in its entire lifetime They're also the primary source of heavy elements in the universe According to
  • 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 Supernovae resemble novae in several respects
  • Supernovas Remnants - Harvard–Smithsonian Center for Astrophysics
    Supernovas are some of the brightest events in the universe, occasionally outshining entire galaxies at their peak Many supernovas can be seen from billions of light-years away, and nearby supernovas in past centuries have been visible during the daytime
  • What is a Supernova? Definition, Causes, Types of Supernova Explosions . . .
    Supernovas are so bright that they can be seen across the universe, outshining their entire galaxies for a few days or even months How Rare is a Supernova? An exploding star happens around once a century in each of the hundreds of billions of galaxies in the cosmos
  • DOE Explains. . . Supernovae | Department of Energy
    A supernova is the colossal explosion of a star Scientists have identified several types of supernova One type, called a “core-collapse” supernova, occurs in the last stage in the life of massive stars that are at least eight times larger than our Sun As these stars burn the fuel in their cores, they produce heat
  • What is a supernova? - EarthSky
    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
  • Supernovae Information and Facts - National Geographic
    These stars end their evolutions in massive cosmic explosions known as supernovae When supernovae explode, they jettison matter into space at some 9,000 to 25,000 miles (15,000 to 40,000
  • What is a Supernova? The Spectacular Death of a Star.
    A supernova is the explosive death of a large star, releasing immense energy and spreading elements vital for new stars, planets, and life across the universe
  • What Is a Supernova? One of the Universes Biggest Spectacles . . .
    Before the invention of the telescope, Western astronomers used stella nova to refer to the appearance of such a temporary new star Today, we know them to be not stars being born but stars in
  • What is a Supernova? Exploring the Explosive Death of Stars and Its . . .
    A supernova is not just a star’s death—it is a dramatic event that reshapes the cosmos These cosmic explosions are responsible for creating the elements that make up the Earth and life itself, and they play a critical role in the evolution of galaxies and stars





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