Ganymede is an enormous moon, larger than any other we’ve found, including our own, and may one day be the centerpiece of wider human settlements around Jupiter.

Skywatchers on Thursday evening, Feb. 6, will notice an eye-catching pairing-off between two of the brightest objects in the ...

Scientists found Titan’s orbit is shifting faster than expected due to tidal dissipation. A recent cosmic event likely ...

Scientists are studying Saturn's moon Titan to assess its tidal dissipation rate, the energy lost as it orbits the ringed planet with its massive gravitational force. Understanding tidal dissipation ...

Watch a bright Moon dominate the sky, trace the Winter Hexagon, and continue enjoying the evening parade of planets in the ...

SkywatchingScienceSkywatchingThe Next Full Moon is the Snow… Skywatching HomeWhat's UpEclipsesExplore the Night SkyNight Sky ...

Venus, Jupiter, and Mars dominate the sky. Catch your last views of Saturn as early in the month, the Moon passes in front of ...

What can a moon’s tidal friction teach us about its formation and evolution? This is what a recent study published in Science ...

Europa Clipper - one of the most advanced spacecraft ever sent to another planet - aims to explore Jupiter's icy moon ...