High-resolution view of active regions in Seth as seen with Rosetta’s OSIRIS narrow-angle camera on 20 September 2014 from a distance of about 26 km from the surface. The image scale is about 45 cm/pixel. The Seth_01 pit is seen close to centre and measures approximately 220 m across and 185 m deep. The image also includes Seth_02 and Seth_03 to the ‘top’ of Seth_01, and Seth_04 and Seth_05 ‘below’ (see context image for guidance). The image has not been enhanced to reveal the jets of activity, but instead focuses on the rich diversity of the comet’s geology both inside the active regions and in the surrounds.
Full story: Comet sinkholes generate jets