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A disc containing the Apollo 11 goodwill messages was left at the site, and various gear that was no longer needed for the return phase of the mission—including Aldrin's boots—was left behind to lighten the craft for return to lunar orbit. [11] As the site of the first human landing on an extraterrestrial body, Tranquility Base has cultural ...
t. e. Lunar Module Eagle (LM-5) is the spacecraft that served as the crewed lunar lander of Apollo 11, which was the first mission to land humans on the Moon. It was named after the bald eagle, which was featured prominently on the mission insignia. It flew from Earth to lunar orbit on the command module Columbia, and then was flown to the Moon ...
Low lunar orbit (LLO) is an orbit below 100 km (62 mi) altitude. These have a period of about 2 hours. [ 2 ] They are of particular interest in the exploration of the Moon , but suffer from gravitational perturbations that make most unstable, and leave only a few orbital trajectories possible for indefinite frozen orbits .
AS11-40-5952: Lunar Laser Ranging Experiment as left on the Moon by Apollo 11 Plot of arrival time of photons (Y axis) for each of many laser pulses sent to the Moon (X axis). This data, along with similar data from the other landing sites, shows there are man-made objects on the Moon in the locations of the Apollo landings.
An estimated 500 million people worldwide watched this event, the largest television audience for a live broadcast at that time. [ 1 ][ 2 ] A Moon landing or lunar landing is the arrival of a spacecraft on the surface of the Moon, including both crewed and robotic missions. The first human-made object to touch the Moon was Luna 2 in 1959.
The landing site had to be close to the lunar equator to minimize the amount of propellant required, clear of obstacles to minimize maneuvering, and flat to simplify the task of the landing radar. Scientific value was not a consideration. [85] Areas that appeared promising on photographs taken on Earth were often found to be totally unacceptable.
The Lunar Reconnaissance Orbiter (LRO) is a NASA robotic spacecraft currently orbiting the Moon in an eccentric polar mapping orbit. [6][7] Data collected by LRO have been described as essential for planning NASA's future human and robotic missions to the Moon. [8] Its detailed mapping program is identifying safe landing sites, locating ...
Diagram of LOR. Lunar orbit rendezvous (LOR) is a process for landing humans on the Moon and returning them to Earth. It was utilized for the Apollo program missions in the 1960s and 1970s. In a LOR mission, a main spacecraft and a smaller lunar lander travel to lunar orbit. The lunar lander then independently descends to the surface of the ...