Giant boulders on Comet 67P/C-G
As Rosetta has moved in on Comet 67P/C-G, engineers have focused in on its most interesting surface features, such as the nucleus’s neck as well as a collection of very large boulders on a relatively smooth area on the nucleus’s larger lobe. The biggest boulder, seen as the middlemost rock in the photo above, they have named Cheops. It is estimated to be 150 feet across with a height of about 80 feet.
It should be emphasized that calling these features boulders might actually be premature at this time.
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