Neutron star - Wikipedia
A neutron star is the collapsed core of a massive supergiant star. It results from the supernova explosion of a massive star —combined with gravitational collapse —that compresses the core past white dwarf star density to that of atomic nuclei.
What are neutron stars? | Space
May 24, 2023 · Neutron stars are created when massive stars reach the ends of their lives and are composed of the densest matter in the known universe.
What are neutron stars? The cosmic gold mines, explained
Dec 27, 2023 · Neutron stars are the perfect cosmic laboratory for the scientists who study them, thanks to their observability, extreme gravity, and strong magnetic fields. Credit: ESO/L. Calçada. It isn’t a...
What does a neutron star actually look like? - astrobites
Nov 19, 2018 · Due to the extreme deflection of photons around a neutron star, what a neutron star looks like is different to the physical reality. Our human minds have adapted to Earth’s gravity and assume that the paths taken by all photons are straight.
Neutron star | Definition, Size, Density, Temperature, & Facts
Nov 8, 2024 · Neutron star, any of a class of extremely dense, compact stars thought to be composed primarily of neutrons. Neutron stars are typically about 20 km (12 miles) in diameter. Their masses range between 1.18 and 1.97 times that …
Webb Finds Evidence for Neutron Star at Heart of Young …
Feb 22, 2024 · NASA’s James Webb Space Telescope has found the best evidence yet for emission from a neutron star at the site of a recently observed supernova. The supernova, known as SN 1987A, was a core-collapse supernova, meaning the compacted remains at its core formed either a neutron star or a black hole.
Neutron Stars - Imagine the Universe!
Sep 23, 2021 · A neutron star is the densest object astronomers can observe directly, crushing half a million times Earth's mass into a sphere about 12 miles across, or similar in size to Manhattan Island, as shown in this illustration.
Chandra Images by Category: Neutron Stars/X-ray Binaries
Sep 3, 2019 · Chandra Images by Category: Neutron Stars/X-ray Binaries -Hot, isolated neutron stars, rotation-powered pulsars, and neutron stars accreting matter from a nearby companion star.
Neutron Stars: Nature’s Weirdest Form of Matter
Mar 1, 2019 · Astronomers Walter Baade and Fritz Zwicky proposed neutron stars in 1934 as an answer to the question of what might be left over after a supernova—a term they coined at the same time for the...
The golden age of neutron-star physics has arrived - Nature
Mar 4, 2020 · Deep, dark mystery. Neutron stars get more complicated the deeper one goes. Beneath a thin atmosphere made mostly of hydrogen and helium, the stellar remnants are thought to boast an outer...