NASA’s GRAIL mission reveals thermal differences in the moon’s mantle, explaining surface contrasts between its sides.

An exhaustive examination of lunar gravity using data obtained by two NASA robotic spacecraft is offering new clues about why ...

"For the first time we can see the chemical cake while it's rising in the oven, instead of just the starting ingredients of ...

The moon's nearside (that is, the side facing Earth) is dark-colored and dominated by ancient lava flows, whereas the farside ...

The moon's insides are crooked thanks to the near ... such as Mars, Enceladus and Ganymede," they wrote. They concluded: "Because tidal tomography does not require a landed spacecraft, unlike ...

Jupiter’s moon Callisto passes near the planet’s northern limb, shortly before Io transits and Ganymede emerges from the gas ...

Who would've guessed that Ganymede, one of Jupiter's many moons ... Sights and sounds from our solar system's largest planet and its largest moon. The photos of the swirling gas giant's "surface ...

Ganymede, and Callisto. The Moon is non-luminous, meaning that it does not produce light. We see the Moon because it reflects light from the Sun, and half of the Moon’s surface is always ...