Astronomers find a star system where a red giant appears to have swallowed two Jupiter-like planets, then later spit out their cores, which now orbit as small, rocky planets. So the planets were ...

Aging stars can completely destroy their planets. When a star reaches the end of its life on the main sequence, it goes through dramatic changes. And those changes don't just dictate the star's fate; ...

A Chalmers-led team of astronomers has for the first time observed details on the surface of an aging star with the same mass as the Sun. Alma’s images show that the star is a giant, its diameter ...