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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These include jets erupting from feeding supermassive black holes, colliding galaxies, and supernova explosions that mark the deaths of massive stars and the births of unimaginably dense neutron stars.
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Robert Lea, Space.com, 25 Feb. 2026
On even longer timescales, the remnant black holes that were created, whether from stellar explosions, neutron star mergers, a collapsing gas cloud, or having grown into supermassive behemoths, will all evaporate.
—Big Think, 20 Feb. 2026
The overlying layers fall inward, compressing the core into a city-sized ball of neutrons—a neutron star—and rebounding outward from the core in star-shaking shockwaves.
—Lee Billings, Scientific American, 12 Feb. 2026
Learning about these highly energized neutrinos could lead to discoveries about where in the universe they might have been created, such as black holes and neutron star collisions — the latter of which are the most powerful classes of explosions in the cosmos.
—Adam Harrington, CBS News, 9 Feb. 2026
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Robert Lea, Space.com, 25 Feb. 2026
On even longer timescales, the remnant black holes that were created, whether from stellar explosions, neutron star mergers, a collapsing gas cloud, or having grown into supermassive behemoths, will all evaporate.
—Big Think, 20 Feb. 2026
The overlying layers fall inward, compressing the core into a city-sized ball of neutrons—a neutron star—and rebounding outward from the core in star-shaking shockwaves.
—Lee Billings, Scientific American, 12 Feb. 2026
Learning about these highly energized neutrinos could lead to discoveries about where in the universe they might have been created, such as black holes and neutron star collisions — the latter of which are the most powerful classes of explosions in the cosmos.
—Adam Harrington, CBS News, 9 Feb. 2026
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 11 Mar. 2026.
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