Scientist-astronaut Harrison H. Schmitt is photographed standing next to a huge, split lunar boulder during the third Apollo 17 extravehicular activity (EVA) at the Taurus-Littrow landing site. In the ...

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Click to open image viewer. The lithium hydroxide canister was designed as a replaceable filter for the command module's environmental control unit (ECU). The ECU provided cooling, water and ...

On this date in 1975, a Soviet and an American shook hands. Even for the time period, this wouldn’t have been a big deal if it wasn’t for the fact that it happened approximately 220 kilometers (136 ...