Anaglyph view looking on to the Aswan cliff, showing clearly the fracture in the cliff top (to the left of the large boulder) that subsequently fell away on 10 July 2015 (the image shown here was taken on 21 September 2014). The image also shows details in the cliff walls, and of the interior of an adjacent 220 m-wide, 185-m deep active pit.
Anaglyph images like these were prepared to help evaluate the volume of overhang that detached. The images are best viewed using red–green/blue 3D glasses.
The image was taken on 21 September 2014 by Rosetta’s OSIRIS camera, approximately 26 km from the surface of Comet 67P/Churyumov-Gerasimenko. The image scale is 0.5 m/pixel. The Aswan cliff is approximately 134 m high.
More information: Collapsing cliff reveals comet’s interior