Recurring slope lineae are Martian seasonal features characterized by a low brightness (albedo) during local spring/summer that fade during winter/late summer.
Their daily characterization through a coordinated observation with HiRISE and the CaSSIS instrument on the ExoMars Trace Gas Orbiter provides additional insights into their nature and formation mechanisms.

ID: ESP_065369_1475
date: 7 July 2020
altitude: 255 km
NASA/JPL-Caltech/UArizona
https://www.uahirise.org/hipod/ESP_065369_1475