Aviation

A couple gets married while weightless

Caltech's Robofly and Bride of Robofly, inspired by spinning maple seeds, have found that multiple evolutionary paths across both plants and animals all appear to lead to a universal ideal

A solar-powered plane gears up for a round-the-world flight

Flying robots hunt for drugs

Beleaguered, outsize traveler Eric Hagerman investigates

Cyberwarfare ratchets up as intruders siphon information from the Pentagon's most sensitive and expensive weapons program. Are Chinese hackers responsible?

Humans help endangered cranes find their homes

A workhorse chopper gets a 21st-century overhaul

British inventor to journey from London to Timbuktu in flying car

Popular Science test-drives Internet service on a passenger plane