Aside from Twitter, exercise, and research, astronauts aboard the ISS have “used hand-held cameras to take more than 450,000 photographs of Earth as seen from their orbiting outpost about 220 miles up in the skies since November 2000.” Video after the break. Click here for the first picture in gallery.

The flexibility to look off to the side, change lenses and choose interesting features to photograph are some of the advantages over stationary Earth-observing cameras on satellites.

[via MSN]