The thing that surprised me was the craters on the surface. More akin to an asteroid.
Having learned comets were primarily balls of ice and seeing the comet appears to be a very solid object has me questioning what is being thrown off, causing the 'tail'.
Glad to see someone else here thinks like me. (Does ice crater when impacted?)
And now "powder"? What could posssibly have brought this powder to the surface and keep it in place? The escape velocity from such a small mass must be next to nothing.
ML/NJ