The Apollo 15 mission began 50 years ago, on July 26, 1971, with a revival of space exploration. We take a look at the expedition which saw new challenges in the conquest of space, from the time astronauts spent on the lunar surface to the use of the first LRV lunar vehicle.
In September 1970, the 17thNOT. Mission for budgetary reasons. A real setback for space exploration, which will benefit the researchers of the American agency. Less than a year later, on July 26, 1971, the mission began 15 launched from Kennedy Space Center, Florida. On-board control and service module (CSM), , Jacobus B. Irwin and David R. Scott are on a mission which should mark another milestone in the lunar exploration program.announce the end
The Apollo 15 landing site was recreated from images collected by the LRO probe (maanverkenningsvoertuig). © NASA
New equipment, new goals
American astronauts are sent to . The latter is able to withstand a higher load, with 48 tons, NASA engineers want to improve the few Apollo missions to be carried out. Scott and Irwin spend a lot more time on the moon than he does at 12. He spent over 21 hours on lunar soil, and around 31 hours After a few months. In this third effective reconnaissance mission, the crew’s stay on the Moon is… 67 hours.Thanks to an improved version of
A message from NASA for the 50th anniversary of the Apollo 15 mission © NASA
The CSM is equipped with new instruments, but only one will attract media attention: the First Lunar Spacecraft (LRV). This small car is three meters long, folded under the LEM forIn the direction of the terrestrial satellite, astronauts can extend their exploration zone by several kilometers. The all-terrain rover can reach a beach At a speed of about 14 km / h and a payload of 490 kg.
After four days of travel, the lunar module separated fromIts descent begins. The landing went off without incident near Mount Hadley and an error of the same name.
You have to explore. This is exploration at its peak
From the early hours of their lunar adventure, Irwin and Scott deployed the LRV, along with many of the tools needed for the scientific work the two astronauts will be doing. Scott will split the prepared sentence, for exampletwo years ago: ” As I stand here in Hadley before the wonders of the unknown, I realize that there is a fundamental truth that characterizes our nature. You have to explore. This is exploration at its peak. “
During three explorations carried out with the rover, the two astronauts covered nearly 28 kilometers of the road. Various drilling operations are carried out at various locations around Mount Hadley and the Hadley Delta. From the first day of the expedition, they installed Alsep (by Apollo Lunar Experimentation Pack). This set of tools consists of:, camera or altimeter, which will be used until 1977. Until now, the Alsep has enabled the world to testify to the existence of Low on the moon’s surface to study surface thermal fluctuations or to perform seismic surveys. Many experiments will be carried out, including the famous hammer – falling feathersCommander Scott will test lunar gravity by pulling a hammer and a spring at the same level, and both objects will hit Earth at the same time.
Hammer and pen test, conducted by David Scott. © NASA
After spending nearly three days on The astronauts aboard the LEM returned to the console, where Alfred Worden made several observations of the lunar surface with cameras and spectrometers. The return of the astronauts to Earth went smoothly and they landed on August 7, 1971 in the Pacific Ocean off the coast of Hawaii. They brought nearly 77 kilograms of moon rocks, the oldest of which have been found, Genesis Rock Or the “Stone Generation”, 4 billion years old.
Although the end In 1972 it was 15NOT. The mission determines the dominance of NASA and the United States in the space race. The technological prowess and the value of the scientific research carried out during the expedition continue, 50 years later, to be a resounding success.
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