THEMIS Image of the Day, May 27, 2019. This false-color image shows part of Mangala Fossa – the linear depression in the bottom half of the image.
The bright blue tones in this image are thought to be surface frost. It is winter time and early in the morning when this image was taken.
The THEMIS VIS camera contains 5 filters. The data from different filters can be combined in multiple ways to create a false color image. These false color images may reveal subtle variations of the surface not easily identified in a single band image.