Watched Space Junk 3D. This was an excellent documentary on the amount of debris in the different orbits. Like many, I always thought the shear size of space would make it unlikely there would ever be a collision. But we had just that in 2010 and it resulted in thousands of pieces still in orbit, now adding to the number of possible collision paths. As more and more collisions occur, the more likely more will happen. In addition, the Geo orbit is so trashed out now with orbiting debris traveling at 17,000 mph that even a fleck of Paint can cause severe damage. The documentary had some really great graphics, 3D CGI to explain it all. If you like anything connected with our space program, this is a good watch, especially in 3D.