The physics of running and keeping fit on the Moon

8 July 2024

Rhett Allain, writing for Wired, looks at the physics of this important question.

If humanity is ever to establish bases on the Moon, ways of keeping occupants fit in the low lunar gravity need to be worked out. A wall of death sort of gizmo, that’s a little like a stationary hamster-wheel, but turned on its side, that emulates Earth-like levels of gravity, may be a solution. But there might be more effective alternatives.

But check out the article’s artist impression of a suited up astronaut “jogging” on the surface of the Moon. Straight up running in this way is a fanciful keep fit option unfortunately, as simple as the idea may at first seem. It’s too bad though, because what a sight it would be to behold: Earth floating in the lunar sky, as you ran.

I doubt Earth would be quite as big as depicted in Nzoka John’s image, but it still be quite the spectacle. And on the subject of what Earth might look like from the surface of the Moon, a gallery of images by American illustrator and writer Ron Miller, depicting how other planets in the solar system would appear from Earth, if they were as close as the Moon.