**Lunar Module**
**Definition**
The lunar module was a spacecraft designed to transport astronauts from lunar orbit to the Moon’s surface and back during the Apollo missions. It was a crucial component of NASA’s efforts to achieve manned lunar landings.
**Overview**
The lunar module (LM), also known as the Lunar Excursion Module (LEM), was developed by Grumman Aircraft Engineering Corporation for NASA’s Apollo program. It consisted of two stages: the descent stage, which contained the landing gear and engines for landing on the Moon, and the ascent stage, which housed the crew cabin and engines for returning to lunar orbit. The LM was the first crewed vehicle to operate exclusively in the vacuum of space and was used in Apollo missions 9 through 17, enabling astronauts to explore the lunar surface and return safely to the command module orbiting the Moon.
**Design and Functionality**
The LM was designed to operate only in space and was incapable of atmospheric flight. Its lightweight structure and modular design allowed it to be carried atop the Saturn V rocket and docked with the command module. The vehicle featured life support systems, navigation controls, and scientific equipment to support lunar exploration.
**Legacy**
The lunar module played a pivotal role in the success of the Apollo program, marking humanity’s first steps on another celestial body. Its innovative design influenced subsequent spacecraft development and remains a symbol of space exploration achievement.
**Meta Description**
The lunar module was a spacecraft used in NASA’s Apollo missions to land astronauts on the Moon and return them to lunar orbit. It featured a two-stage design for descent and ascent during lunar exploration.