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.

Hubblecast 115 Light: Triangulum Galaxy in unrivalled detail

The latest news about astronomy, space and the NASA/ESA Hubble Space Telescope presented in High Definition is only for devices that play High Definition video (not iPhone or iPod). To watch the Hubblecast on your iPod and/or iPhone, please download the Standard Definition version also available on iTunes.