In geology, honeycombs are an intriguing pattern of small cavities on rock surfaces found in coastal regions, wet areas, deserts, and even on Mars. They are fascinating to look at in natural objects ...

PASADENA, Calif. — Climate cycles persisting for millions of years on ancient Mars left a record of rhythmic patterns in thick stacks of sedimentary rock layers, revealed in three-dimensional detail ...

Rainwater runoff can erode the surface of a water-soluble rock, scarring it with hundreds of parallel channels. Sharp alignment. Natural rillenkarren appear as long, parallel grooves, as seen in these ...

Rainwater runoff can erode the surface of a water-soluble rock, scarring it with hundreds of parallel channels. Sharp alignment. Natural rillenkarren appear as long, parallel grooves, as seen in these ...