Pluto may have been demoted to non-planet status, but it still commands a court of five moons, as is fitting for the king of ...

The eight largest moons in our solar system are Ganymede, Titan, Callisto, Io, Earth's Moon, Europa, Triton, and Titania.

If you look up on a clear night, the brightest and largest object in the sky will probably be the moon. And unless you have a decent telescope, it is the only natural satellite you can see with your ...

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NASA announced today that it's detected subsurface oceans on Ganymede, the solar system's largest moons, while earlier announcements point to hydrothermal vents on Enceladus, the small moon of Saturn.

Scientists have performed laboratory experiments to better understand how Saturn's moon Titan can maintain its unique nitrogen-rich atmosphere. Titan is the second largest moon in our solar system and ...