Planetary systems with multiple stars appear chaotic at first glance, yet observations and simulations show the opposite. Stable systems naturally arrange themselves into hierarchical layers, allowing ...

Like pretty much everything else in this Universe of ours, stars die, too. When they go, they make a spectacle of themselves and go with a bang, swelling into red giants that swallow everything in ...

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 ...