- Continuously Variable Transmission
Detailed information with drawings and pictures about various types of alternative transmissions designs.
Advanced Space Transportation Program - NASA MSFC
The Marshall Space Flight Center in Huntsville, Alabama, leads NASA's initiatives to dramatically improve access to space.
A & E Engineering
Some advanced propulsion concepts described.
NASA's Origins Program
Seeks to answer the fundamental questions about the Universe: Are we alone in the Universe? How did we get here? What is the origin of the Universe? Is there another Earth-like planet in our celestial neighborhood?
Ultra-Efficient Engine Technology Program
NASA sponsored program to research and develop next generation aircraft engines.
List of Space Propulsion Methods
Attempts to list all known space propulsion methods.
The Nuclear Engines for Rocket Vehicle Applications project. Started by the Atomic Energy Commission and NASA in 1961 and cancelled in 1971 due to radiation worries and a lack of interest from NASA.