Think back to a bygone era of Elon Musk — when he talked less about blue checks on Twitter and more about blue-sky ideas to colonize Mars, reuse rockets, and tackle climate change. One of his ...

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 ...

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 ...

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 ...

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 ...

The infamous hyperloop concept was applauded by many and contested by some. The idea of traveling with zero emissions and zero noise, at a mind-blowing speed of 670 mph (1,078 kph), is certainly ...

In 2013, Elon Musk talked about the Hyperloop. A futuristic transport system built around near-vacuum tubes designed to whisk passengers between cities at speeds of up to 1,000 km/h (621 mph). Though ...