Neutron stars harbor some of the most extreme environments in the universe: their densities soar to several times those of ...

Some of the universe’s densest objects can twist, stretch, and resonate in ways that challenge even the most seasoned ...

Merging black holes and neutron stars have unusual oval orbits prior to colliding and merging, which challenge the laws of ...

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Researchers said this event, called GRB 230906A, is likely in a stream of gas located about 4.7 billion light-years from Earth.

Let’s look at a white dwarf first. These stellar remnants are the remains of Sun-like stars and are made mostly of carbon and oxygen. A white dwarf’s outer shell is so hot that it will radiate visible ...

The catastrophic collision of a black hole and a neutron star sent ripples across the universe. New analysis of those ripples could upend a major theory about how these extreme pairs form.