Swirls of Mare Ingenii

Swirls are a rare lunar surface feature, bright and curvy shapes on the lunar soil. Seen below are a swarm of lunar swirls in the Ingenii crater.

Rolling in the crater

Seen here is a rolling rock, or a rock rolling? How did the fragmented rock (boulder) roll in this curvy fashion?

Seen here is a caldera, a rare type of lunar crater. The caldera of Hyginus and the accompanying rilles (channels) on both sides are actually collapsed volcanic features! Continue reading “The collapsed crater of Hyginus” →

On the Moon’s surface lie a set of bizarre looking features called Irregular Mare Patches, or IMPs. Here’s one, called Ina.