A Russian state fund said Wednesday it had invested in the company Hyperloop One which is developing a futuristic train project that will propel people and cargo in capsules via low-pressure tubes.

“We have no idea what we’re doing,” declared Elon Musk, standing beside a yawning “test trench” in Southern California in 2017. A crowd of engineering students and tech reporters hooted and hollered, ...

Elon Musk revived his long-standing vision for a high-speed transportation alternative between Los Angeles and San Francisco early Thursday, April 9, suggesting that his tunnelling venture could ...