An international team of astronomers reports the discovery of 34 rare double-lined double white dwarf binary systems using the Intermediate-dispersion Spectrograph and Imaging System (ISIS) on the ...

Astronomers from the University of Sheffield and Pennsylvania State University have performed X-ray and optical observations of a massive star known as Melnick 39. As a result, they found that Melnick ...

Publisher from verso of t.p. Series from preface. I. Historical sketch: the early period -- II. Historical sketch: the modern period -- III. Observing methods, visual binary stars -- IV. The orbit of ...

Discovered a New Binary Star? Nope, It's Just a Starlink Satellite Astronomers suspect Starlink satellites are photo-bombing a Chinese telescope's spectroscopic observations, prompting some to ...

Scientists analyzed over a decade's worth of data about 16 young supermassive stars orbiting the supermassive black hole at the center of the Milky Way galaxy. Supermassive stars typically are formed ...

Astronomers have confirmed a giant planet orbiting a tightly bound pair of young stars, marking a first in direct exoplanet imaging. The planet, known as HD 143811 AB b, is the closest-in world ever ...