neutron star
noun
: a dense celestial object that consists primarily of closely packed neutrons and that results from the collapse of a much larger stellar body
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In this scenario, a supernova births two baby neutron stars that quickly merge, producing a kilonova whose light is partly hidden by expanding supernova debris.
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Neetika Walter, Interesting Engineering, 16 Dec. 2025
The first planets beyond the solar system ever confirmed, Poltergeist (PSR B1257+12 B) and Phobetor (PSR B1257+12 C), spotted in 1992, also orbit pulsars, a young, rapidly spinning form of neutron star.
—Robert Lea, Space.com, 16 Dec. 2025
Such a burst can be caused by a collision between a black hole and a dense object called a neutron star or—as in this case—by the death of a large star.
—Clara Moskowitz, Scientific American, 9 Dec. 2025
Meanwhile, the corpses, which may become neutron stars, can then merge, producing the majority of the heaviest stable elements on our periodic table.
—Big Think, 27 Nov. 2025
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Neetika Walter, Interesting Engineering, 16 Dec. 2025
The first planets beyond the solar system ever confirmed, Poltergeist (PSR B1257+12 B) and Phobetor (PSR B1257+12 C), spotted in 1992, also orbit pulsars, a young, rapidly spinning form of neutron star.
—Robert Lea, Space.com, 16 Dec. 2025
Such a burst can be caused by a collision between a black hole and a dense object called a neutron star or—as in this case—by the death of a large star.
—Clara Moskowitz, Scientific American, 9 Dec. 2025
Meanwhile, the corpses, which may become neutron stars, can then merge, producing the majority of the heaviest stable elements on our periodic table.
—Big Think, 27 Nov. 2025
See All Example Sentences for neutron star
Cite this Entry
“Neutron star.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/neutron%20star. Accessed 19 Dec. 2025.
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