The U.S. military's classified mini space shuttle has returned to Earth after circling the world for 434 days.
The Navy already operates various types of UUVs — alongside unmanned surface vehicles (USVs) and unmanned aerial vehicles ...
and create high-energy batteries to power miniature unmanned aerial vehicles (UAVs), increasingly critical to battlefield troops. Just think, your Th!nk could be powered by the same battery that ...