the kessler syndrome is a scenario where in orbiting debris would collide and create a cascading chain reaction of colliding debris, ultimately creating an impassable field-a mass, if you will. 

These types of collisions are what happens with all things, at all times.

What do these collisions look like then?

x-ray photons illuminating and irradiating a skeleton,
dye seeping from a cast back into its mold- each object imparting itself into the other.