
This artist’s concept illustrates what the night sky might look like from a hypothetical alien planet in a star system…

To prepare for the Apollo landings, five Lunar Orbiter spacecraft were launched during 1966 and 1967 to gather detailed images…

This montage of images taken by the Voyager spacecraft of the planets and four of Jupiter’s moons is set against…

European Space Agency (ESA) astronaut Christer Fuglesang, STS-116 mission specialist, participates in the mission’s second of three planned sessions of…

Fish-eye view of the Space Shuttle Atlantis as seen from the Russian Mir space station during the STS-71 mission.

This mass of storm clouds was observed by Expedition 1 from the International Space Station. The picture was the first…

Named by the Romans after the fleet-footed messenger of the gods, the planet Mercury is closest to the sun. Seen…

In the first spacewalk of the STS-118 mission, astronaut Rick Mastracchio and the Canadian Space Agency’s Dave Williams (out of…

STS-116 Mission Specialists Robert L. Curbeam, Jr. (left) and Christer Fuglesang participate in the first of the mission’s three planned…