Very strange. Nowhere near enough gravity to keep all those rocks sticking to it, let alone to have what looks all the world like a dust or small debris slope at an angle of repose.
nothing to knock the rocks off either
At the moment, there is nothing to move loose material off the comet’s surface. It has a mass of ~1 X 10^13 kg. Escape velocity is ~0.5 m/s.
It does not take much gravity in space to hold a object by my way of thinking, and I am not a scientist.
All you need to be is the biggest mass in the vicinity. The small stuff will come to you.
I wonder what would happen if you had a fat guy floating about..
There’s plenty of gravity to do that, there’s just nothing large enough that’s near enough to entice the pieces away.