Nasa has released images of real regions on Mars where new Hollywood film The Martian takes place.
The novel of the same name used actual locations on Mars for landing sites for its "Ares 3" and "Ares 4" missions. The first is on a Martian plain named Acidalia Planitia and the second is set inside a crater named Schiaparelli.
Nasa has unveiled images of these two sites, and other locations in the fictional story, from the High Resolution Imaging Science Experiment (HiRISE) camera on their Mars Reconnaissance Orbiter.