We examine the long-delayed plan to build a railway linking China and Nepal straight through the Himalayas, one of the most extreme engineering challenges ever proposed. First imagined in the 1970s ...

Editor’s note: This article, distributed by The Associated Press, was originally published on The Conversation website. The Conversation is an independent and nonprofit source of news, analysis and ...

A nuclear engineer reacts to an ambitious concept explored by PBS Space Time: could antimatter-powered spacecraft exist within our lifetime? This video breaks down how antimatter propulsion would work ...