On Feb. 11, 2015, Elon Musk of SpaceX tweeted this photo, showing the Falcon 9 rocket's second stage carrying the DSCOVR satellite to its parking orbit. The Earth shines in the background.

Just before sunset at ET on Wednesday, Feb. Falcon 9 lifted off from SpaceX’s Launch Complex 40 at Cape Canaveral Air Force Station, Fla. carrying the Deep Space Climate Observatory (DSCOVR) satellite on SpaceX’s first deep space mission.