It might be much faster than we originally believed, yet it"s a logistical nightmare.

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From our vantage suggest on Earth, the moon look at small. But if you were to hop in a spaceship, don a spacesuit and go top top an epos lunar hike, how long would certainly it take to walk all the means around it?


The answer counts on myriad factors, consisting of how quick you deserve to go, just how much time every job you spend walking, and what detours you"ll should take to protect against dangerous topography.

Such a trip about the moon could take longer than a year, yet in reality, there are a lot more challenges come overcome.

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A complete of 12 humans have actually stepped foot ~ above the lunar surface, all of whom were component of the Apollo missions between 1969 and also 1972, according to NASA. The footage the was beamed back to planet showed how difficult (and, apparently, fun) it was to walk — or more accurately, bounce — roughly in the moon"s short gravity, i m sorry is one-sixth the heaviness of Earth.


However, study from NASA has since suggested that the is possible for people to exercise much faster on the moon than the Apollo astronauts did. Theoretically, walking the circumference of the moon can be done quicker than formerly predicted.

Picking increase the pace

During the Apollo missions, astronauts bounced about the surface at a casual 1.4 mph (2.2 km/h), follow to NASA. This slow-moving speed was mainly because of their clunky, pressurized spacesuits that were not designed through mobility in mind. If the "moonwalkers" had sported sleeker suits, they might have discovered it a lot less complicated to relocate and, as a result, choose up the pace.

In 2014, a NASA study published in the journal of experimental Biology experiment how quick humans could walk and run in simulated lunar gravity. To do this, the team got eight entrants (three of which to be astronauts) to usage a treadmill onboard a DC-9 aircraft, which flew special parabolic trajectories on earth to simulate gravity on the moon for up to 20 secs at a time.


This experiment revealed the the participants to be able to walk as much as 3.1 mph (5 km/h) prior to breaking into a run. This is no only more than dual the wade speed regulated by the Apollo astronauts however also reasonably close to the 4.5 mph (7.2 km/h) typical maximum walking rate on Earth, follow to the researchers.

The participants pulled turn off these quick speeds due to the fact that they to be able to freely swing their arms, similar to how humans run on Earth. This pendulum motion produced a downward force, which partially compensated because that a absence of gravity. One of the reasons the Apollo astronauts were so slow-moving on the lunar surface was because they couldn"t do this properly due their chunky suits.



(Image credit: Shutterstock)

At this brand-new hypothetical max speed, it would take around 91 days to walk the 6,786-mile (10,921 km) one of the moon. Because that context, it would certainly take roughly 334 days to walk nonstop (i.e., not preventing to sleep or eat) about the 24,901-mile (40,075 km) circumference of planet at this speed, although that is impossible to do so since of the oceans.

Obviously, it"s not possible to to walk nonstop because that 91 days, therefore the yes, really walk approximately the moon would take much longer.

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Planning your route

Walking about the moon likewise poses a number of different challenges. "I think logistically, it can be done," Aidan Cowley, a scientific adviser at the European an are Agency, called Live Science. "But it would certainly be a very strange mission to support."

One the the biggest challenges would be moving supplies, such as water, food and oxygen.

"I don"t think you"d be transferring them in her backpack," Cowley said. "Because that"d be much too lot mass even, also if you"re at one-sixth gravity."

Therefore, friend would need to have a support auto with you, Cowley said. This car could also twin as shelter.

"A lot of the agencies space looking right into the principle of having a pressurized rover, which deserve to actually assistance the astronauts as soon as they"re doing expedition missions, kind of favor portable mini-bases," Cowley said. "You could use that to go in in ~ night and resupply and also then go earlier out during the day and also walk roughly again."

Moon adventurers would likewise need a spacesuit through a style that allows for optimal movement. Current spacesuits space still not created with extreme locomotion in mind, however some organ are occurring form-fitting suits the will permit for the eight swing important to walk properly on the moon, Cowley said.

The moon"s harsh topography would likewise make detect a an ideal route roughly it fairly tricky, specifically with meteor craters that have the right to be several miles deep. "You would really desire to go roughly ," Cowley said. "It"s simply too dangerous."

You would additionally have to aspect in light and also temperature once planning the route. "At the equator , and also during the day, you"re spring at temperature at about 100 degrees centigrade <212 degrees Fahrenheit>," Cowley said. "And then at nighttime, that drops to prefer minus 180 C ."

The lunar bike also method there room days once there is tiny or no sunlight, and at least fifty percent the journey would need to be excellent in the dark. Offering protection against these too much temperatures could be possible with specially designed suits and also the rover for protection, however the temperatures could also adjust the state that regolith — a well gray soil the covers the moon"s solid bedrock — and influence how rapid you could walk top top it, Cowley said.

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This 1972 photoshowsscientist-astronaut Harrison H. Schmitt, the lunar module pilot top top Apollo 17, trying out the moon v his flexible sampling scoop. (Image credit: NASA/JSC)

However, radiation can pose an even greater danger. Uneven Earth, the moon walk not have actually a magnetic ar that helps deflect radiation from getting to its surface.

"If there to be no significant solar activity at a time, then it might not be so bad," Cowley said. "But if there was a solar flare or coronal ejection and also you"re fight by high levels of radiation, that could make girlfriend very, really sick." (Solar flares and coronal fixed ejections both release big amounts that energy and also magnetized particles, but differ in the types of particles they emit, the term of the event and the method the radiation they create travels v space, follow to NASA.)

This kind of mission would additionally require a huge amount the endurance training because of the requirements of working out in low gravity on her muscles and also cardiovascular system. "You"d need to send one astronaut through ultra-marathon-level fitness to execute it," Cowley said.


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Even then, walking in ~ a optimal speed would be feasible only for roughly three to 4 hours a day, Cowley said. So, if a human walked at 3.1 mph (5 km/h) because that 4 hrs a day, then it would take an approximated 547 days, or almost 1.5 years to walk the moon"s circumference, suspect your course isn"t also disrupted through craters and also you can address the temperature changes and also radiation.

However, humans won"t have the modern technology or devices to attain such a feat till at the very least the so late 2030s or at an early stage 2040s, Cowley said.

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"You"d never gain an company to support anything favor this," Cowley said. "But if some crazy billionaire wants to try it, possibly they deserve to pull it off."

Originally published on Live Science.



Harry Baker is a trainee news writer at Live Science, based in the U.K. The studied naval Biology in ~ the university of Exeter (Cornwall Campus). After graduating, he created his very own blog website "Marine Madness," wherein he writes around the weird and wonderful creatures of our oceans and the problems they face in a transforming world. He is also interested in evolution, climate change, space exploration and also environmental conservation. When not at job-related he can be found watching sci-fi or reading about octopuses. You deserve to follow him on Twitter