NASA's MODIS image for May 17 looks down on Kyushu, the southernmost of Japan's four main islands. The accompanying note points to the island's volcanic setting and to Sakurajima, a volcano whose usual activity can be mild but persistent, with ash and lava fragments part of the rhythm.
It is a strong image-of-the-day pick because it makes planetary systems legible without turning them into abstraction. A quiet orbital view contains tectonic history, human proximity and the operational work of monitoring hazards before they become headlines.