LEO ...

Creepy says it all but you and I already know that, right?

By using a hybrid movement that is somewhere between walking and flying, the researchers get the best of both worlds in terms of locomotion. LEO's lightweight legs take stress off of its thrusters by supporting the bulk of the weight, but because the thrusters are controlled synchronously with leg joints, LEO has uncanny balance.

"Based on the types of obstacles it needs to traverse, LEO can choose to use either walking or flying, or blend the two as needed. In addition, LEO is capable of performing unusual locomotion maneuvers that even in humans require a mastery of balance, like walking on a slackline and skateboarding," says Patrick Spieler, co-lead author of the Science Robotics paper and a former member of Chung's group who is currently with the Jet Propulsion Laboratory, which is managed by Caltech for NASA.

In other words ...

LEO is still a prototype—a kind of proof-of-concept to see if a bipedal flying robot can perform tasks that would otherwise be difficult or impossible for ground robots or aerial drones to accomplish on their own. In the future, a full-fledged version could be tasked with difficult or dangerous jobs, such as inspecting and repairing damaged infrastructure, installing new equipment in hard-to-reach places, or attending to natural disasters and industrial accidents. Eventually, a LEO-like robot could even transport delicate equipment to the surface of a celestial body, such as Mars or Saturn’s moon Titan. More ominously, the agile bipedal flier could be used in defense or warfare.

LEO, equipped with AI and weapons ... what could possibly go wrong?