Astronomers have reported observations of a rare star system consisting of one star orbiting a system of three more tightly bound stars. This quadruple star system is described in a new study, ...

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WARWICK, England — Just 160 light years from Earth, two dead stars are dancing toward destruction. These white dwarfs, the collapsed remains of once-ordinary stars like our Sun, have grown so massive ...

Astronomers have found thousands of exoplanets around single stars, but few around binary stars—even though both types of stars are equally common. Physicists can now explain the dearth. Of the more ...