Tracking Mars’ Ice Ages From Space

Image generated from data acquired by the ESA Mars Express’s High Resolution Stereo Camera (HRSC) on Oct. 19th, 2024. Credit: ESA/DLR/FU Berlin

Travelling up from Mars’s equator towards its north pole, we find Coloe Fossae: a set of intriguing scratches within a region marked by deep valleys, speckled craters, and signs of an ancient ice age.