The 28 Dove satellites that make up Planet Labs' Flock 1 mission, seen here before delivery to the International Space Station, will be the largest single constellation of Earth-imaging satellites ever to launch into space. (Planet Labs)
This is a close-up of one of the 28 Dove satellites that is part of the Planet Labs' Flock 1 mission. The Flock 1 constellation of satellites deployed today from the International Space Station. (Planet Labs)
This image of sea ice in the Gulf of Bothnia off the coast of Lulea, Sweden, was taken on April 26, 2013, by the Planet Labs Dove 2 satellite, a predecessor of the Flock 1 Earth-imaging constellation of small satellites. Data collected by Flock 1 will be universally accessible. (Planet Labs)
For more information, visit http://www.nasa.gov/centers/johnson/home 
It is often said that if everyone had the opportunity to see Earth from the perspective of astronauts in space, respect and admiration for our planet would grow and the environment would be better protected. A new fleet of 28 small satellites, called Flock 1, may help provide this perspective to people like never before...