and even hybrid rocket engines are becoming passé. We’ve never seen a liquid-fuel rocket build before, so that’s what this roundup evolved into. First up is [Robert Watzlavick], who has been ...

Electrolyte powders like Liquid IV can give your body a necessary hydration boost when you’re doing strenuous exercise, spending hours outdoors or in situations where H20 alone doesn’t cut it.

WASHINGTON — A Northrop Grumman Minotaur IV rocket successfully launched multiple classified payloads for the U.S. National Reconnaissance Office (NRO) on April 16, marking a return to ...