I am part of the science teams of two remote sensing instruments in orbit around Mars: The University of Arizona's High Resolution Imaging Science Experiment (HiRISE) on board NASA's Mars Reconnaissance Orbiter (MRO), and The University of Bern's Colour and Stereo Surface Imaging System (CaSSIS) on board ESA's ExoMars Trace Gas Orbiter (TGO). Both instruments are taking spectacular images of the red planet, which the scientific community can then use to understand the history and current state of Mars, and its connection to solar system history.
CaSSIS reveals the beautiful sedimentary beds of a mound in Juventae Chasma, just north of Vallis Marineris near the Martian equator. Similarly to the Polar Layered Deposits, sedimentary deposits like these also record variations in climate or environmental properties that led to the accumulation of individual layers, but at much more ancient times than the polar record. This mound has been found by other instruments to contain sulfates, which are minerals that indicate the past presence of water.
You can follow the operations and see many of the images taken by these instruments through our Instagram (@uahirise and @cassis_unibe) and Twitter (@HiRISE and @ExoMars_CaSSIS) accounts.