One of the Expedition 40 crew members aboard the International Space Station recorded this colorful image of Aurora Australis on July 15, 2014.
One of the Expedition 40 crew members aboard the International Space Station photographed this image from an altitude of 225 nautical miles.
Unoccupied Russian Orlan spacesuits for Russian cosmonauts.
One of the Expedition 40 crew members aboard the International Space Station, flying 225 nautical miles above Earth, recorded this image over southern Italy on Aug. 13, 2014.
Saturn reigns supreme, encircled by its retinue of rings.
This is a close-up image photographed during a run of the Burning and Suppression of Solids (BASS) experiment onboard the Earth-orbiting International Space Station.
Full-frame NAVCAM image taken on 21 August 2014 from a distance of about 69 km from comet 67P/Churyumov-Gerasimenko.
Of all the planets NASA has explored, none have matched the dynamic complexity of our own. Earth is constantly changing, and NASA are working constantly to explore and understand the planet on scales from local to global.
Intersecting the thin line of Earth's atmosphere, International Space Station solar array wings are featured in this image photographed by an Expedition 40 crew member on the orbital outpost.
Rosetta navigation camera image taken on 18 August 2014 at about 84 km from comet 67P/Churyumov-Gerasimenko. The comet nucleus is about 4 km across.