It’s no simple feat to send a rover to space, land it on a celestial body, and get the wheels rolling. NASA has used all kinds of techniques: The Pathfinder rover landed on Mars in 1997 inside a cluster of airbags, then rolled down its landing vehicle’s “petals,” which bloomed open like a flower, to the dusty surface. Cables attached to a rocket-powered “sky crane” spacecraft dropped the Perseverance Mars rover to the Red Planet’s surface in 2021.
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