The United States accused Russia on Monday of a “dangerous and inexplicable escalation” of its nearly four-year war in Ukraine at a time when the Trump administration is trying to advance negotiations toward peace. U.S. deputy ambassador to the United Nations Tammy Bruce singled out Russia’s launch of a nuclear-capable Oreshnik ballistic missile last week close to Ukraine’s border with Poland, a NATO ally.

As Jonathan Roll neared completion of a master's degree in science and technology policy at Arizona State University three years ago, he did some research into recent developments by China's ascendant...

YouTube video by B.C. Begley

Jared Isaacman, tech billionaire and SpaceX astronaut, nominated by Trump to lead NASA, aiming to advance space exploration and technology.