Neutron stars are very small and dense stars, where roughly half a million earth masses of material are squeezed into a city-sized volume with a radius of 10 km.

Just a sugar cube of neutron star matter would weigh about one hundred million tons on Earth. A neutron star's almost incomprehensible density causes protons and electrons to combine into neutrons ...

The explosion released elements heavier than iron—like gold and platinum—through a process known as rapid neutron capture ...

compact star that is so dense it literally breaks down regular parts of atoms (like neutrons) into their constituent quarks.

Many parts of the calculation had previously been ... it had previously been suggested that the speed of sound in a neutron star, traveling as compressed waves, had a maximum of c/√3 in strongly ...

Researchers have observed only a handful of neutron-star mergers, and only on one occasion — the 2017 event — has the merger also been seen by non-gravitational-wave observatories such as ...

Since the nuclear fusion taking place is dwindling during a star's death, gravity begins to win and starts to squeeze the star's core. Sun-like low-mass stars use up the final parts of their ...

Simulations indicate that the low-mass star in the J0453+1559 binary system could be a neutron star rather than a white dwarf. The star's mass, 1.174 M ⊙ , is unusually low for a neutron star.

Only black holes have a higher mass density. While black holes colliding with each other can only be detected by the emitted gravitational waves, neutron star mergers briefly emit a flash of light ...

Binary neutron star mergers emit gravitational waves followed by light. To fully exploit these observations and avoid missing key signals, speed is crucial. An interdisciplinary team of ...