Scientists from Rosetta’s OSIRIS team have discovered an unusual formation of boulders (in the centre of the region outlined) in the Aker region on the large lobe of Comet 67P/Churyumov-Gerasimenko. At first glance they are reminiscent of so-called “balancing rocks” on Earth.
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| ESA |
Of the three boulders, the largest has a diameter of approximately 30 metres. In an image taken on 16 September 2014, it stands out as having only a very small contact area with the comet’s surface. It also seems to be perched on the rim of a small depression.
