With a name straight out of “Game of Thrones,” Buvinda Vallis lies near the northeastern flank of the Hecates Tholus volcano on Mars. It is not at all difficult to imagine liquid (lava? water?) ebbing and flowing on either side of the prominent ridge that plots a serpentine course across the valley floor. The photograph was shot by the Thermal Emission Imaging System aboard the 2001 Mars Odyssey spacecraft, which has been orbiting the planet and providing valuable data for almost 15 years.