Exploring Mars: Blowing in the Wind? NASA

One answer to roving across the surface of Mars may be blowing in the wind. Literally. Researchers exploring different methods to deliver scientific instruments to various Martian locales are studying the potential for a giant, lightweight, two-story tall beach ball. Equipped with scientific instruments, the so-called “tumbleweed ball” conceived by JPL researchers could potentially explore vast tracts of planetary terrain, blown by the wind.