Dare I say it, but there does appear to be structures on the surface of this "not to little asteroid" .

In the better resolution of the rock, we see something that appears to be completely artificial! And by the looks of the scale below, one could easily fly a craft right under what looks like a "canopy" of sorts.

The image below has been turned 180 degrees. Note the shadow line of the canopy.

That entire canopy is about the size of the lower 10 floors of the Empire State Building.