in an interesting experiment, NASA has launched a nano-satellite from a from a free flying "microsatellite". interesting. it is like a satellite fractal, getting smaller and smaller versions of itself! lol. included with the nanosatellite was a nanosolar sail! awesome. glad to see nasa doing SOMETHING at least.
read more here:
http://www.nasa.gov/mission_pages/smallsats/fastsat/10-162.html