Reusable rockets have reshaped the economics of spaceflight by dramatically reducing the cost of launching payloads into orbit. Traditional rockets were single-use vehicles that burned up or crashed ...

Scientists learned early on how crucial the roll maneuver was to get astronauts to space, and NASA has been using it since ...

It's been a century since a two-second rocket flight in Massachusetts kicked off the liquid-rocket-fuel revolution. Robert H. Goddard (1882-1945), who directed the flight, is widely considered to be ...