A close-up NavCam image taken on 15 May 2016, when Rosetta was 9.88 km from the nucleus of Comet 67P/Churyumov-Gerasimenko, shows a strange looking object on a flat region on the comet.

Credits: ESA/Rosetta/NAVCAM – CC BY-SA IGO 3.0.

Maybe the object is just a rock or a shadow cast by bumps in the terrain, however, according to UFOvni2012 it is not a rock but a spacecraft with antennas standing on the surface of the comet.

See video for more details about the alleged spacecraft.

Link to the original image: http://www.esa.int/var/esa/storage/images/esa_multimedia/images/2016/05/comet_on_15_may_2016_navcam/15994006-1-eng-GB/Comet_on_15_May_2016_NavCam_node_full_image_2.jpg