MessageToEagle.com - ESA’s Mars Express has spent nearly ten years imaging the Red Planet, and there are
plenty of hidden treasures buried in the mission’s rich picture archive.
HRSCview is a web interface to the archive that offers a chance to browse and explore any region of the Red Planet
through the eyes of Mars Express with images that have not necessarily been highlighted by formal media releases.
As Planetary Society blogger Bill Dunford puts it: “The glamour shots of the planets that space agencies release are
always gorgeous…but sometimes it’s fun to wander out on your own.”
Indeed, Bill took a hike through the maze of valleys in the Noctis Labyrinthus region of Mars earlier this year
using HRSCview as a tour guide, to
produce this beautiful mosaic.
Noctis Labyrinthus, the ‘Labyrinth of the Night’, is on the western edge of Valles Marineris, the Grand Canyon
of Mars. It was first captured by Mars Express in June 2006.
Noctis Labyrinthus is a complex tectonic region intimately linked to uplift of the nearby Tharsis volcanic region,
home to the biggest volcano in the Solar System, Olympus Mons.
Noctis Labyrinthus mosaic
This mosaic shows part of the Noctis Labyrinthus region, the ‘Labyrinth of the Night’, on Mars. It was composed by Bill Dunford using scenes available in the Mars Express image archive, HRSCview.
This image was featured as space science image of the week on 25 March 2013.
Original image - - here
As the Tharsis bulge swelled upwards, the planet’s crust stretched, resulting in parts of the surface fracturing
along parallel fault lines, producing sunken features known as graben.
Some of the graben in this scene are heavily eroded, with rocky debris scattered at their bases. Younger formations
are visible on the upper surfaces, with fault lines crossing each other in different directions, suggesting
many episodes of tectonic stretching.
This scene is a composite of around half a dozen images. Bill selected the images he was interested in from
HRSCview and stitched them together, filling in a few small gaps in the data by sampling the pixels immediately
adjacent. He also brightened the resulting picture.
If you make an expedition through the martian landscape using HRSCview and create images like this, please
share them with us via email (scicom[@]esa.int) or Twitter (@esascience). Who knows what treasures you may find?