In 2016 billionaire Yuri Milner hosted a press conference at One World Observatory, the atrium topping the slick skyscraper ...

The idea was that high-powered lasers would propel tiny probes to 20 percent of the speed of light, impelling them with ...

Cartoonist Zach Weinersmith and his wife Kelly, a parasitologist, publish 'A City on Mars', where they mock Elon Musk's ...