Before we send any planet-trotting robot to explore the landscape of Mars or Venus, we need to test it here on Earth. Two such robotic platforms being developed for future missions are undergoing testing at European Space Agency facilities: one that rolls, and one that hops.
A ”quick” tour of volcanism on Io
Could aliens be living on terraformed or paraterraformed planets? - Quora
New Bioinspired Robot Flies, Rolls, Walks, and More
Robots Might Jump Around to Explore the Moon - Universe Today
Four-legged jumping robots to explore the moon
New space robot would hop—not drive—across other worlds, Science
International Space Agencies - Missions and Discoveries - Civilsdaily
Rolling, hopping robots explore Earthly analogs of distant planets
Space – Page 3 – BLDGBLOG