> but may only fly over a particular spot of land once per day. Even less frequent: Landsat 8 repeats every 16 days: http://www.usgs.gov/blogs/features/usgs_to

> but may only fly over a particular spot of land once per day. Even less frequent: Landsat 8 repeats every 16 days: http://www.usgs.gov/blogs/features/usgs_top_story/landsat-8-set-to-extend-long-run-of-observing-earth http://www.usgs.gov/blogs/features/usgs_top_story/landsat-8-...