Landsat 8 marks five years in orbit
(PHYSorg.com Space & Earth)

In its five years in space, the Landsat 8 Earth-observing satellite has racked up some impressive statistics: 26,500 orbits around the planet, 1.1 million `scenes` captured, a motherlode of images that represents 16 percent of all the observations in the 45-year Landsat archive.