It should have been obvious from the start that Elon Musk’s Hyperloop was just a boy’s own fantasy and could never work.

Chinese researchers have announced breakthroughs that may resolve the most persistent engineering flaw in vacuum-tube maglev systems, an issue that has stumped Elon Musk and other developers.

Parts of India will become some of the first areas in the world to benefit from a functional hyperloop train system. The government of Maharashtra state has signed an agreement with TuTr Hyperloop, a ...