A young star called V1298 Tau is giving astronomers a front-row seat to the birth of the galaxy’s most common planets. Four ...

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.

Scientists find that deep molten rock can power long-lasting magnetic fields, helping large rocky planets hold onto their ...

Although Mercury was geologically active in its early days, today its surface appears almost completely static. This is why ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. There’ s six-planet parade on Monday, Aug. 25, just before ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Skywatchers will be treated to a rare spectacle on Saturday, ...

These icy bodies orbit the sun just like the major planets, yet they follow their own rules, often traveling along elongated ...

Scientists now have direct evidence that a planet — not just failed stars — can rove the galaxy after a violent expulsion from its orbit. Credit: NASA / JPL-Caltech / R. Hurt illustration Astronomers ...