The tech startup’s ambitions suffered from internal strife, regulatory hurdles and more. Bloomberg reporter Sarah McBride covered the twists and turns on its route to failure. While Marketplace’s Lily ...

Hyperloop One, the futuristic transportation company building tube-encased lines to zip passengers and freight from city to city at airplane-like speeds, is shutting down, according to people familiar ...

Elon Musk described a dazzling vision: a transit system that could hurl passengers between cities at nearly the speed of sound. His paper on the topic spurred a cohort of big-thinking entrepreneurs to ...

Elon Musk is very much an ideas man. He regularly comes out with elaborate solutions to the world's problems. His musings have included robotaxis, nuking the Martians, and brain chips capable of ...