Earth and Moon
This picture of the Earth and Moon in a single frame, the first of its kind ever taken by a spacecraft, was recorded Sept. 18, 1977, by NASAs Voyager 1 at a distance of 7.25 million miles from Earth. Because Earth is many times brighter than the Moon, the Moon was artificially brightened by a factor of three relative to the Earth by computer enhancement so that both bodies would show clearly in the prints.
The European Space Agency’s comet chasing mission Rosetta took these infrared and visible images during its Earth fly-by in early March 2005 while on its way to Comet 67P/Churyumov-Gerasimenko. The images gave the Rosetta team a chance to calibrate its instruments on a real space object to make sure everything was in working order.