On March 2, 1979, a paper in Science ruminated on Io’s strange orbit. Because of the positions and orbits of neighboring moons, Io’s orbit is elliptical rather than circular.

Amazingly, the samples of material from the moon retrieved by the Apollo missions are still providing new insights more than 50 years later, in this case how tiny glass beads that litter the lunar ...

The moon may be much older than previously believed. Scientists are challenging prior conceptions about its formation some ...

There are a number of reasons to suspect the moon is older. For instance, there are rare lunar zircon minerals that suggest ...

On July 7 1961, the U.S. Air Force launched a satellite called Discoverer 26 into orbit with a classified payload. On July 7, 1961, the U.S. Air Force launched a satellite called Discoverer 26 ...

Last night's "Strawberry Moon" hovered lower in the night sky than it had done since 2006. Here are some stunning global snaps of June's full moon during the major lunar standstill.

The Resilience lunar lander, made and operated by the Japanese company ispace, was scheduled to land in the Mare Frigoris, or "Sea of Cold," region of the moon's northern hemisphere on June 5.