There's no replacement for displacement. An adage that's been around as long as the combustion engine, really. But these ...

The Curiosity rover is heading to a region containing formations that were possibly made by groundwater billions of years ago ...

Astronomers have made a groundbreaking discovery in the Perseus galaxy cluster, located 240 million light-years from Earth.

The X-66 program heavily modified a McDonnell Douglas MD-90 aircraft to demonstrate a truss-braced version of the thin wing.