However, accessing these subterranean caves is not easy, and future astronauts would ... robotic system to explore lunar lava tubes. A key component is the Tether Management and Docking System ...

On July 20, 1969, astronauts Neil Armstrong and Buzz Aldrin landed in the Lunar Module Eagle and became the first humans to step foot on the lunar surface while astronaut Michael Collins orbited above ...

Its crew spent three days on the lunar surface ... scientist-astronaut in 1965. He was assigned in August 1971 to fly on the last mission, Apollo 17, replacing Joe Engle as Lunar Module Pilot.

Apollo 13's Lunar Module performed a vital "lifeboat" role when that mission had to be aborted following an explosion. Most of the other modules - once they had safely returned astronauts back to ...