Researchers at NASA’s Jet Propulsion Laboratory (JPL) are investigating the feasibility of creating a ‘windbot,’ a new kind of probe designed to stay aloft in an atmosphere of a gas giant for a long time. This artist’s concept shows a windbot bobbing through the skies of Jupiter, drawing energy from turbulent winds there; the windbot is portrayed as a polyhedron with sections that spin to absorb wind energy and create lift, although other...