The Apollo Lunar Module, or simply Lunar Module, originally designated the Lunar Excursion Module (LEM), was the Lunar lander spacecraft that was flown between lunar orbit and the Moon's surface during the United States' Apollo program. It was the first crewed spacecraft to operate exclusively in the airless vacuum of space and remains the only crewed vehicle to land anywhere beyond Earth.

Spaceflight I

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Spaceflight (or space flight) applies astronautics to fly spacecraft into or through outer space, either with or without humans on board. Most spaceflight is uncrewed and conducted mainly with spacecraft such as satellites in orbit around Earth and includes space probes for flights beyond Earth orbit. Such spaceflight operates either by telerobotic or autonomous control. 

Apollo
Astronaut
Cosmonaut
Countdown
Gravity
Ground Control
Heat Shield
Lift Off
Lunar Module
Orbit
Shuttle
Spacecraft
Touchdown
Astronomy
Spaceflight
Solar System
Universe