The SpaceHopper robot is a clever project from ETH Zurich:
The Space Hopper robot for microgravity environments:https://t.co/ftQrJpFkfi It can jump around and land without bouncing, so it can explore asteroids, and it uses counter-balancing leg movements in flight to orient itself instead of needing flywheels. pic.twitter.com/HMG3V9AyFP
As a team of ten students, we developed a legged robot designed for microgravity environments. Our robot is able to demonstrate the key capabilities necessary for microgravity locomotion. The development of SpaceHopper continues, and one-day, SpaceHopper might explore the surface of asteroids.
I love the SpaceHopper idea; of course, there are precedents in science fiction for the idea of three-legged robots of various kinds.
Consider the spider tripod robot from Rendezvous with Rama, the 1972 Arthur C. Clarke classic novel:
Ten metres away was a slender-legged tripod surmounted by a spherical body no larger than a football. Set around the body were three large, expressionless eyes, apparently giving 360 degrees of vision, and trailing beneath it were three whiplike tendrils. The creature was not quite as tall as a man, and looked far too fragile to be dangerous, but that did not excuse their carelessness in letting it sneak up on them unawares. It reminded Norton of nothing so much as a three-legged spider, or daddy-long-legs, and he wondered how it had solved the problem - never challenged by any creature on Earth - of tripedal locomotion.
(Read more about Clarke's spider tripod robot)
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't came out into plain view. Darkington glimpsed a slim body and six short legs of articulated dull metal.'
Origin F1 Humanoid Robot's Facial Skin
'I could look down at that face of carefully molded synthetic rubber, tinted the exact shade of the doctor's living flesh.' - Rog Philips, 1950.
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'I don't have to tell you about the seven two-mile-diameter orbital mirrors that circulate around the satellite, making it habitable.'