Using the Gran Telescopio Canarias (GTC), astronomers from the Chinese Academy of Sciences (CAS) and elsewhere have discovered a new extremely r-process-enhanced star in the Milky Way's thin disk.

The very low-mass stars contain only about half the mass of the sun. Given the typical size of a red giant star , the researchers said this mass loss could only be explained in one of two ways.

Neutron stars are very, very weird — and we just learned a fascinating new detail about them Neutron stars are the densest objects in the universe, created from massive stars that have collapsed.

Astronomers have watched a massive star vanish in the night sky, only to be replaced by a black hole.. The supergiant star M31-2014-DS1, which has a mass 20 times greater than the sun and is ...