Skygazers, mark your calendars because one of the coolest celestial events is coming around again toward the end of February.

The origin of super-Earths and sub-Neptunes has been revealed in a system of four young planets that are dramatically losing ...

Scientists have discovered more than 6,000 planets beyond our solar system. What if some of them aren't planets at all, but ...

Polygon has rounded up the best icy sci-fi planets from our favorite video games, movies, television, and books ...

Stargazers will revel in a dazzling display as a six "planet parade" dances across the sky on Sunday, Aug. 10. While it won't be easy to see the full planet lineup this weekend without binoculars or a ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. For five consecutive mornings, beginning on Aug. 17, early ...

Spectacular clouds swirl across the surface of Jupiter. These clouds contain water, just like Earth's, but are much denser on ...

On August 10, six planets—Mercury, Venus, Jupiter, Saturn, Uranus, and Neptune—will line up in an arc in the night sky. Four of these planets—Mercury, Venus, Jupiter, and Saturn—can be seen with the ...

Over the years, passing spacecraft have observed mystifying weather patterns at the poles of Jupiter and Saturn. The two ...