Chemical rockets carried humans to the Moon, but they burn fuel too quickly for the next era of deep-space travel. The text explores future ideas including 96,000-kilometer space elevators, nuclear ...

Every rocket that leaves Earth must lift not only its payload, but also the enormous supply of propellant needed to keep climbing. Fuel and oxidizer can account for roughly 90% of a conventional ...

Go faster, farther, more efficiently. That's the goal driving spacecraft propulsion engineers like Chen Cui, a new assistant professor at the University of Virginia School of Engineering and Applied ...