The Secret History of the Moon takes viewers on a high-resolution journey through the origin, evolution, and mysteries of ...

The Earth-Moon system is unusual in several respects. The Moon is roughly 1/4 the radius of the Earth – a larger satellite-to-planet size ratio than all known satellites other than Pluto’s Charon. The ...

Astronomers using the NASA/ESA Hubble Space Telescope, along with older data from the Voyager 2 probe, have revealed more about the origin of Neptune’s smallest moon. The moon, which was discovered in ...

How did the Moon form? Was it from a collision, as has been the longstanding theory, or could it have been captured by the Earth early in our planet’s formation? This is what a recent study published ...

Forbes contributors publish independent expert analyses and insights. An award-winning reporter writing about stargazing and the night sky. Angled view of the Giordano Bruno, Lunar crater, 2016. The ...