Rosetta Probe Spots Large Rocks Perfectly Balanced on Comet 67P

Three balanced large boulders on Comet 67P have been spotted by the ESA Rosetta Team.

The three balancing rocks are located in the Aker region on the larger lobe of the comet.

The largest boulder (labelled “3” in the video) is approximately 98 feet (30 meters) in diameter and appears to be sitting on the edge of a small depression in the surface, according to the statement from ESA.

The largest known boulder on the comet’s surface is called Cheops, and measured approximately 147 feet (45 m) across.