Map of Idaeus Fossae in context

This image shows the Idaeus Fossae region of Mars in wider context.

The area outlined by the larger white box indicates the area imaged by the High Resolution Stereo Camera (HRSC) aboard ESA’s Mars Express orbiter on 8 November 2024 (orbit 26325). The smaller white box within shows the patch of surface featured in new images released in December 2025.

Mars Express releases from 2006 and 2013 featured parts of the prominent outflow channels visible to the left of frame here, known as Sacra Mensa and Kasei Valles.

Read more

[Image description: A colour-coded topographic map of a region on Mars called Idaeus Fossae. The map shows elevation differences with green, blue, and orange shades, and labels major areas such as Tempe Terra, Acidalia Planitia, Chryse Planitia and Lunae Planum. Several craters and valleys are marked, along with a white rectangle indicating the HRSC orbit coverage.]