Transportation

“Blended-wing” aircraft design promises 50% cut in fuel
Blended-wing-body aircraft aren’t new, but the sector might soon start taking off for the first time.
A $790,000 flying car is now cleared for takeoff
Air mobility startup Aska has begun flight testing the Aska A5, an SUV-sized flying car that costs an eye-watering $789,000.
Rolls-Royce tests its first hydrogen-powered plane engine
This amphibious electric tricycle (and camper) costs $14,600 
The technology we (or aliens) need for long-distance interstellar travel
Stanford engineers warn that electric car charging could crash a grid powered by renewable energy 
Walking to school is more likely to keep kids active as they age
Electric planes are coming: Short-hop regional flights could be running on batteries in a few years
Paradox-free time travel is “logically” possible, say physicists
“Up to 2.4 million new apartments” legalized by bipartisan California legislation
Air Canada orders 30 electric-hybrid aircraft for takeoff in 2028