The Moon is packed with all sorts of interesting features that only come to light -- literally, in some cases -- when very high-resolution imaging is done. For example, the lunar far side has a bunch of small volcanoes, some only a few hundred meters across, like this one:
[Click to enlunenate.] The image is about 500 meters across, so this is a hill you could climb pretty easily, even though the low Sun angle implies the slope is greater than 13° (remember, the Moon has 1/6th the Earth's gravity so that would be a pretty easy hike). Those boulders on the top are weird; they only appear to be on one side, and there doesn't seem to be anything in that direction that would be a source of them. There are none on the plains around it, or at the bottom of a nearby crater, either. The source must ...
