The unmanned airship maintains stable buoyancy by separating helium in its head from fuel cells in its tail
Forget those cigar-shaped dirigibles of yore. German-American collaboration has produced a tadpole-like airship that could debut within days, and make even a jaded Sky Captain take a second look.
Solar Impulse has been unveiled

Solar Impulse: The Solar Impulse is the prototype of a fuel-free aircraft that is designed to circle the globe on sunlight alone. Solar Impulse/Stephane Gros
As environmental concerns increasingly shape the direction of technology, the future of aviation is no exception: scientists have been looking to replace fuel-guzzling aircraft with solar-powered variants, an innovation that, in addition to passing the green test, would also enable planes to linger in the sky for longer.
The creepy, tiny wing-flapping UAV, designed for indoor flight, is modelled on hummingbirds
A few years from now, bird-watchers may be in for a double take: that flapping creature in the distance? Nope, not a bird. Mutant dragon fly? Nope--it's Darpa's latest unmanned aerial robo-sentinel, inspired by the flight mechanics of birds.
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A solar-powered plane gears up for a round-the-world flight
This fall, Swiss adventurer Bertrand Piccard and his team will begin test flights of a prototype of Solar Impulse, a sun-powered plane designed to circumnavigate the globe without burning a drop of oil. Piccard wants the project to demonstrate the potential of green technology, and he’s feeling the pressure. "We still have to prove that this plane will fly," he says.
A solar-powered plane gears up for a round-the-world flight
This fall, Swiss adventurer Bertrand Piccard and his team will begin test flights of a prototype of Solar Impulse, a sun-powered plane designed to circumnavigate the globe without burning a drop of oil. Piccard wants the project to demonstrate the potential of green technology, and he’s feeling the pressure. "We still have to prove that this plane will fly," he says.
Flying robots hunt for drugs
What happened to you, Holland? You used to be cool. As every popped-collar, half-witted frat boy and Bonnaroo-attending, blond dreadlock-wearing neo-hippie moron repeats ad nauseum, you were the country kindest to the kind bud.
Well, apparently Dutch robots aren't quite so accepting of a little puff now and then.
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Cyberwarfare ratchets up as intruders siphon information from the Pentagon's most sensitive and expensive weapons program. Are Chinese hackers responsible?
After frightening revelations that hackers have already managed to break into the computer systems that control huge swaths of the United States' power grid and other pieces of national infrastructure, the Wall Street Journal reports that cyber-spies have broken into the Pentagon's Joint Strike Fighter program -- its costliest initiative -- and made off with several terabytes of sensitive data.
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Popular Science takes a gander at a sticky issue, in the wake of the plane downed in the Hudson River
By Susannah F. Locke
Posted 03.16.2009 at 12:16 pm
Unfortunately, there’s pretty much no way to protect jet engines from geese or other large birds. In fact, fastening some sort of shield over a jet engine could actually make things worse.
Popular Science takes a gander at a sticky issue, in the wake of the plane downed in the Hudson River
By Susannah F. Locke
Posted 03.16.2009 at 12:16 pm
Unfortunately, there’s pretty much no way to protect jet engines from geese or other large birds. In fact, fastening some sort of shield over a jet engine could actually make things worse.
A seaplane for beginners
Posted 11.21.2008 at 2:06 pm
Intended for novice fliers who have received the FAA’s new, more accessible sport-pilot license, the A5 is a low-cost, seaworthy, easy-to-fly, easy-to-store aircraft that aims to bring personal flight to the masses. This sleek floatplane has folding wings that make it compact enough to tow home and stow in your garage.
A seaplane for beginners
Posted 11.21.2008 at 2:06 pm
Intended for novice fliers who have received the FAA’s new, more accessible sport-pilot license, the A5 is a low-cost, seaworthy, easy-to-fly, easy-to-store aircraft that aims to bring personal flight to the masses. This sleek floatplane has folding wings that make it compact enough to tow home and stow in your garage.
An ambitious aircraft concept combines the speed of a plane, the agility of a helicopter and the efficiency of a hybrid car
By Abe Streep
Posted 10.21.2008 at 11:13 am
Imagine a car veering off a lonely mountain road and tumbling down the embankment. Minutes later, a sleek aircraft zooms in quietly at 230 miles an hour, tilts its wings and rotors up, hovers, and sets down just feet from the wreck. The pilot and a medic load the injured driver into the aircraft and zip back to a hospital at twice the speed of a conventional helicopter ambulance.
An ambitious aircraft concept combines the speed of a plane, the agility of a helicopter and the efficiency of a hybrid car
By Abe Streep
Posted 10.21.2008 at 11:13 am
Imagine a car veering off a lonely mountain road and tumbling down the embankment. Minutes later, a sleek aircraft zooms in quietly at 230 miles an hour, tilts its wings and rotors up, hovers, and sets down just feet from the wreck. The pilot and a medic load the injured driver into the aircraft and zip back to a hospital at twice the speed of a conventional helicopter ambulance.
DARPA wants to harness your imagination
It sounds like a Hollywood concept, but DARPA wants to make the submersible aircraft a reality -- and they need your help. This week, the Defense Advanced Research Projects Agency put out a request for designs: they want a vehicle with a 2,000-pound capacity that can cover an area of about 1,000 nautical miles, fly that distance in just eight hours, and -- by the way -- fly both above and below water.
At Stanford, a "smart" helicopter learns to fly by watching an expert
For many, the word "apprentice" brings to mind the whimsical scene from Disney's Fantasia where Mickey Mouse, the poor peon to the sorcerer, creates a mess of his master's workspace when the brooms and buckets come to life in a magical musical number. The helicopter apprenticeship at Stanford University seems to contain some of the same elements of unrealism, as helicopters learn to fly and execute complex airborne tricks without a human pilot in the cockpit. In this case, however, there is science behind the magic.