While Philae rests quietly on the dark surface of comet 67P/Churyumov-Gerasimenko, the
The picture above was taken Dec. 10 by Rosetta's NavCam when the orbiter was 12.5 miles away. The smaller lobe of the rubber-duck-shaped comet is on the right side of this picture, and the larger lobe is on the left. The smooth-looking slope with the boulders is the comet's skinny neck.
The authors of the NASA page write that the wall of the cliff rises about 1 kilometer (0.6 of a mile) high. That may sound treacherous, but because the comet's gravity is low -- Earth's gravity is several hundred thousand times stronger -- a person could probably jump off the edge and land without getting hurt.
Let's get back to that smattering of boulders in the comet's midsection. Although they look small in the picture, the biggest ones are actually about 65 feet across.
Rosetta will continue to escort the comet on its journey toward the sun for the next several months, so expect more amazing images -- and science results -- sometime soon!