SPHERES:

SPHERES stands for Synchronized Position-Hold Engage Reorient Experimental Satellites. For more information on SPHERES, visit the SPHERES website at http://ssl.mit.edu/spheres/.

Movies:

YouTube

The MIT Space Systems Laboratory

Founded in 1995, the SSL engages in cutting edge research projects with the goal of directly contributing to the present and future exploration and development of space.  http://ssl.mit.edu