Reynisdrangar basalt sentinels
Temple in floodplain
Las Grietas: Miniature Canyons of Lanzarote
Connection to the deep crust
Penitentes' labyrinth
Polarized light photomicrograph of a thin section of brazilian agate.
Satellite image of the tree-like village
Hello darkness, my old friend
Volcano-Tectonic Interaction
Permafrost melt and glacial retreat outpacing human expectations.