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quark star

noun, Astronomy.
a hypothetical celestial object that is intermediate in density between a neutron star and a black hole, possibly the remnant of a massive neutron star with all particles reduced to strange quarks.
Also called strange star. Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2018.
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Examples from the Web for strange star
Historical Examples
  • Strange names of strange worlds, revolving about a strange star.

    The Long Voyage Carl Richard Jacobi
  • The news, he said, was confirmed by the appearance of a strange star with a tail to it in the sky.

    Lost Diaries Maurice Baring
  • Evidently, the strange star had impressed him even more than it had me—though perhaps in a different manner.

    The Gloved Hand Burton E. Stevenson
  • The strange star folk were very silent, never calling and laughing as those who had slid there in the morning had done.

  • The light of that day went the way of its brethren, and with the later watches of the frosty darkness rose the strange star again.

    Tales of Space and Time Herbert George Wells
  • By the passing of a strange star, life on earth is convulsed and conditions radically changed.

  • The door of the manger was ajar, and through it he saw the sky and the strange star still shining brightly.

strange star in Science
strange star  
See quark star.
quark star  
A superdense celestial object that is formed when the remnants of old stars collapse on themselves, denser than a neutron star but not dense enough to become a black hole. Quark stars were first hypothesized in the 1980s, but the first was not discovered until early 2002. Like neutron stars, quark stars are composed of neutrons that have undergone enough pressure by the collapse of the star to have lost their differentiation and dissolved into a mass of quarks and gluons. The up and down quarks of which neutrons are composed then change into strange quarks, with the resulting strange matter compacting into an even denser mass than a neutron star. Also called strange star.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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