Anaglyph image of 'butterfly' crater and wrinkle ridges
Anaglyph image of 'butterfly' crater and wrinkle ridges
Anaglyph images can be created from the nadir channel of the High Resolution Stereo Camera (HRSC) camera system, which looks vertically down at Mars, and one of the four stereo channels, which are directed obliquely towards the surface. Using red/blue (cyan) or red/green glasses gives a three-dimensional impression of the landscape. This image shows a slightly oval crater about 16 kilometres across, with an ejecta blanket in the shape of a butterfly. Ridge-like structures resembling twisted rope can also be seen running across the image. These terrain features are known as 'wrinkle ridges'.
Copyright note:
As a joint undertaking by DLR, ESA and FU Berlin, the Mars Express HRSC images are published under a Creative Commons licence since December 2014: ESA/DLR/FU Berlin, CC BY-SA 3.0 IGO. This licence will also apply to all HRSC images released to date.