Transportation

Mercedes-Benz wins race to bring Level 3 autonomous cars to US
This Swedish start-up is building an electric airliner
Startup unveils flying taxis expected to soar over NYC in 2025
Construction juggernaut unveils huge electric mining truck
Kid-friendly superblocks are a way for residents to reclaim their streets
Cruise robotaxi service is quickly expanding
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