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Neutron star

A neutron star just before merging with the black hole. Image: Carl Knox OzGrav/Swinburne University of Technology

Astronomers discovered a merger of a black hole and a neutron star, then another just ten days later

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A rare event that occurred in January 2020 still fascinates scientists, who are trying to learn about the structure of the neutron star with its help
Illustration of a neutron star and black hole merging. Credit: Dana Berry/NASA

Will gravitational waves be able to shed light on the expansion rate of the universe?

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A red giant (and a planet next to it). Illustration: shutterstock

A hybrid star - a neutron star inside a red supergiant

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Swift J1749.4-2807 - a double system that also contains a pulsar. Image: NASA

A pulsar in eclipse: the key to understanding the Shapiro delay effect from general relativity

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An electroweak star

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Neutron star WR 104 won't kill us

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Fermi discovered a pulsar that emits only in the gamma ray range

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Forget neutron stars, quark stars may be the most dense objects in the universe

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A planet orbiting a sun that has long since ended its life in the main series has been discovered

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