For more than 60 years, nearly every large rocket used some combination of the same liquid and solid propellants. Refined ...

The Earth is much larger than most people realize. You need to use engines if you want to efficiently navigate large sections of the planet. Everything from cars to planes relies on engines, but they ...

CAPE CANAVERAL — If all had gone according to plan, four astronauts might have been returning just this week from a history-making, 10-day slingshot trip around the moon. Instead, NASA's engineers ...

The idea of using in-situ resources, such as water, on the surface of distant worlds to synthesize rocket fuel has been around for many decades. For many years, for instance, scientists have suggested ...