Stand on a coastal shore and watch how eagles, ravens, seagulls, and crows take flight in high winds. It’s an inspiring sight, to be sure. Additionally, it illustrates an important concept in aerial ...

Alpha Centauri sits more than four light-years away, close enough to fascinate generations of dreamers and far enough to make today’s rockets look painfully limited. At current speeds, a trip there ...

NASA has funded eight advanced-technology concepts that agency officials believe could help transform space science and exploration. The high-risk, high-reward ideas — which received grants under ...