Scientists may have been overestimating the size of the solar system’s biggest planet. New data from NASA’s Juno spacecraft hint that Jupiter is a bit thinner and flatter than previously thought, ...

A newly identified Earth-sized exoplanet with a year-long orbit may lie near its star’s habitable zone, but extreme cold could limit its chances of hosting liquid water.

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 ...

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

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

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 ...