Space Technology, Defense & Exploration

The most important element of space is geosynchronous orbit, a circular orbit 22,300 miles above the planet where satellites appear to be stationary above the surface of the earth. British science fiction writer, futurist and inventor Arthur C. Clark mathematically determined the orbit in 1947, the general said.   The …

In late 2014, the Internet was all abuzz over a video that purported to show a working hoverboard called Hendo hoverboard, sailing over a copper track—rider attached. Exploiting Arx Pax’s Magnetic Field Architecture (MFA) technology, the Hendo hoverboard uses electromagnetic energy—with two downward-firing disc-shaped “hover engines” creating an opposing magnetic …

Elon Musk, chief executive officer of SpaceX, unveiled its spacecraft called Dragon V2 that is designed to fly from outer space to the earth and, like a helicopter, touch down safely on the ground.