The last man to go on the moon, follow to NBC News, was U.S. Astronaut Eugene Cernan. The Apollo 17 commander scratched his daughter"s initials onto the lunar surface before returning to planet in December 1972, and no person has collection foot on ours nearest celestial ar since.

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For every the time, money, training, and effort put right into sending men, and driveable vehicles, to the moon, the amount of distance extended on the surface by every the Apollo astronauts quantities to only a couple of miles. By comparison, the one of the moon in ~ its equator is 6,783 miles, according to universe Today, or about the distance between Miami, Florida, and also Tehran, Iran (in a right line).

Meanwhile, wade on the moon isn"t just a matter of putting one foot in former of the other, prefer you perform on Earth. Heaviness is fully different there, come say naught of the truth that you"d be wearing around 300 pounds that spacesuit.

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As is always the case when discussing exactly how long it would certainly take to execute a certain task, it is, ~ above the surface ar at least, a issue of simple math. And also in the situation of the moon, we have all the variables. Specifically, according to Healthline, a human have the right to walk at about 3.5 miles every hour. So we divide the circumference of the moon (6,783 miles) by person walking speed, and we obtain 1,938 hours, or around 81 days. That course, none of this accounts because that the need for rest, or relocating away indigenous obstacles, or other useful concerns.

You may have noticed another problem with this together well: go on the moon is totally different from walking right here on Earth. You need to wear a spacesuit, and the reduced gravity forces you to type of shuffle fairly than in reality walk. In fact, according to Live Science, the Apollo astronauts to be able to achieve a walking speed of around 1.4 miles every hour top top the moon"s surface ar in their spacesuits. Law the math when again, we wind up with a take trip time of 4,845 hours, or about 202 days. Again, however, no one of this accounts for the need for breaks, or for the should avoid obstacles, etc.

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However, every the calculations mentioned above assume the the theoretical moon-walker is law this experiment in Apollo-era gear. However, together Live science notes, spacesuits have obtained a hair more advanced in the previous 50 years, as have astronaut training methods. Indeed, in 2014, NASA sent some test topics up in a plane that simulates the moon"s gravity, placed them on treadmills, and found that, theoretically at least, the theoretical astronauts could attain a walking rate of around 3.1 miles per hour, or very close come the average human being walking speed on Earth.

The reason for this abrupt changes? for starters, the topics were able come swing your arms bottom — something they couldn"t perform in clunky Apollo-era suits — and thus propel themselves contempt downward, hence overcoming the difficulty of lack of gravity.

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Under these new (if hypothetical) conditions, one astronaut in a modern-day space suit can walk around the moon in around 91 days, if he or she didn"t take breaks or need to move about obstacles.