Sunset over Meridiani Planum - Sol 2411 (credits: NASA/JPL-Caltech/Cornell/Texas A&M)

The Sun descends to the Martian Horizon and sets in this image from the PanCam on NASA's Mars Exploration Rover Opportunity. The Rover Team uses the PanCam to view Sunsets a few times a year, when the Rover power is adequate, as a way to monitor distribution and variability of Dust in the Lower Atmosphere.

This picture has been taken taken through the PanCam's 440 nanometer-wavelength (blue), and 864 nanometer-wavelength (near InfraRed) filters, on Opportunity's 2411th Martian Day, or Sol (such as Nov., 5, 2010). The Sun's glare saturated part of the image and so part of the the glare has been removed and then it has been inserted a non-saturated image of the Sun, taken from the previous day's imaging using PanCam's special solar filter.

The end result simulates watching the Sun set on Mars using a good pair of dark sunglasses.