Automotive

Tesla comes when called, but can fray nerves

Roddie Hasan loves his Tesla, but after a fright using a feature that lets him summon the car as he might a dog, he says he will be walking to get it.

Engineering

Engineers build drones to test hypersonic tech

Sandia National Laboratories is developing autonomy and artificial intelligence for flight systems soaring at more than 3,800 mph. The technologies to get there will initially be tested on drones that shuffle around at about ...