The European Space Agency has released this image focusing on a section of Aurorae Chaos and Ganges Chasma on Mars. It was taken earlier this year by the High Resolution Stereo Camera on Mars Express.
Aurorae Chaos is roughly 710 kilometres across and plunges some 4.8 kilometres below the surrounding terrain. Water once flooded through this deep chasm on Mars that connects the “Grand Canyon” of the Solar System – Valles Marineris – to the planet’s northern lowlands.