NGC 3603-A1 is a pair of giant stars locked in a rapid 3.8-day orbit. Their dynamic relationship provides clues to how ...

An international team of astronomers reports the discovery of a new pre-main-sequence eclipsing binary system. The newfound ...

The R Aquarri binary star system consists of a white dwarf that is pull material from its companion red giant star. The ...

An international team of astronomers has performed multiwavelength observations of a gamma-ray binary system known as HESS J0632+057. Results of the observational campaign, presented July 31 on the ...

A pair of stars orbiting one another has been found near the supermassive black hole Sagittarius A* using the European ...

A bizarre planet defies cosmic norms: scientists have confirmed a giant planet orbiting in reverse around one star in a close binary system—an arrangement previously thought impossible. Using advanced ...