Crater Crazy, a new game from brother Parker, challanges your ability to see where the close-up comes from in a field of craters.
On a more serious note, What is the most common feature seen on 'large and small' bodies in the solar system?
So might we note expect that their formation can be replicated at the drop of a hat?
But it is not a dropping sort of thing, it is more like lifting
It is the lifting of charged material from the surface by a differently charged object. In many instances, in these images, a spark accompanied the displacement of material. Some of the material transfered to the probe (see third link), but more that anything, material just accumulated around the discharge point, as can be seen in the close-ups. (first two links) If I had a real fast video camera, i could satisfy my expectation that the material accumulates around other discharge areas as well. This is seen to some extent in the deposit video.
These were power-on discharges to a TV. That configuration always creates round craters when the probe is stationary.
Today is the 30th of November. In several days I'll post new image of the same field to see if more material has accumulated with any further discharges. Already well demonstrated is the process of accumulation, at surrounding features, during discharges in close proximity.
Check back to see the results.