The latest news about astronomy, space, and the NASA/ESA Hubble Space Telescope presented in High Definition.
http://www.spacetelescope.org/videos/hubblecast/
Hubblecast 114: How does Hubble orientate itself in space?
This new Hubblecast episode takes a detailed look into the refined Pointing Control System that allows Hubble to keep its gaze into the Universe firm and steady.