Mars landing missions use wheels to move around, but their progress can be stymied by sand-traps, steep slopes and boulder fields. A hopper would simply leap across these obstacles to the next safest, flat surface.
Mars landing missions use wheels to move around, but their progress can be stymied by sand-traps, steep slopes and boulder fields. A hopper would simply leap across these obstacles to the next safest, flat surface.
Mars landing missions use wheels to move around, but their progress can be stymied by sand-traps, steep slopes and boulder fields. A hopper would simply leap across these obstacles to the next safest, flat surface.
Chris Froome, the 2013 Tour de France winner, was being peppered with questions that furtively touched on a bigger issue — have you doped? — when his team director leaped into the fray, fairly bubbling with frustration.
Chris Froome, the 2013 Tour de France winner, was being peppered with questions that furtively touched on a bigger issue — have you doped? — when his team director leaped into the fray, fairly bubbling with frustration.
Chris Froome, the 2013 Tour de France winner, was being peppered with questions that furtively touched on a bigger issue — have you doped? — when his team director leaped into the fray, fairly bubbling with frustration.
A woman who has an elaborate scheme to propose to her boyfriend on Leap Day faces a major setback when bad weather threatens to derail her planned trip to Dublin.
Flying fish live in all oceans. Their unusually large pectoral fins allow them to escape from predators by leaping out of the water and gliding short distances.