If you're lucky enough to have clear skies tonight, you can catch a "mini planet parade" as Mars and Jupiter appear alongside a half-lit moon in the southwestern sky.

In March and April 2025, internet users shared a striking image that they claimed showed "Steeple Mountain," a massive point ...

Of course, our moon isn’t the only celestial body orbiting larger planets. See if you can match the moon to the planet it ...

A massive solar windstorm in 2017 compressed Jupiter's magnetosphere "like a giant squash ball," a new study reports.

Catch two transits of Io, spot sparkling star clusters, and view Mars at aphelion while the April Full Moon lights the sky ...

Jupiter’s four largest moons – Io, Europa, Ganymede and Callisto – were the first ever discovered orbiting another planet ... more about the formation of its beautiful rings.

Juno is scheduled for an upcoming flyby of Jupiter on May 7, during which it is set to carry out a close approach of the ...

Io is an incredibly active and extreme place, with glistening lava lakes and volcanic eruptions shooting sulfur and magma to ...

"Typically, temperatures decrease gradually toward the equator, reflecting how auroral energy is redistributed across the planet," the ... been exploring Jupiter and its moons since 2016.