In the late 1950s, Project Orion proposed using controlled nuclear explosions to propel massive spacecraft at unprecedented speeds. From city-sized starships to a 44-year journey to Alpha Centauri, ...
Reaching Alpha Centauri within a single human lifetime has long sounded like science fiction, yet a new generation of nuclear ...
In 2016 billionaire Yuri Milner hosted a press conference at One World Observatory, the atrium topping the slick skyscraper at the center of the rebuilt World Trade Center complex. Milner had grown ...