Astronomers have doubled the number of black hole and neutron star mergers detected via gravitational waves in a "stellar ...

How do more massive atoms form? So, the hydrogen and helium atoms formed during recombination, when the cooler temperature allowed electrons to fall into orbits.

Today we know that protons (and neutrons) are formed from even smaller particles, quarks, and that the nucleus of an atom is made from protons and neutrons (with the exception of the basic form of ...

While astronomers can detect neutron stars in a variety of ways, exactly what goes on inside them remains poorly understood. But after decades of research, recent observations and theoretical ...

But neutron star mergers couldn’t be the only source, he said. For one, these events occur relatively late in galactic history, which doesn’t explain how stars formed earlier in the universe ...

For only the second time, astronomers have detected gravitational waves that were created by the violent merger of two neutron stars, according to a new study.

A team of physicists has found that the remnant of a neutron star merger observed in 2019 has just the right mass to be a strange hypothetical quark star.

So, how are elements heavier than iron formed? Most of these “heavy elements” are created by atomic nuclei capturing neutrons.

The neutron-star collision that gave the solar system its precious metals is sharing its secrets with scientists.

Astronomers think that kilonovas form every time a pair of neutron stars merge. But mergers produce other, brighter light as well, which can swamp the kilonova signal.