Warp Drive When?
Have you ever wondered . . .

NASA Jet Propulsion Laboratory Technical Reports Server (JPLTRS) v2.0
enter 'propulsion' into search and get 100+ reports

NASA Stennis Space Center
Where NASA tests rocket engines.

Advanced Space Transportation Program - NASA MSFC
The Marshall Space Flight Center in Huntsville, Alabama, leads NASA's initiatives to dramatically improve access to space.

Breakthrough Propulsion Physics Program
Experiments and theories regarding the coupling of gravity and electromagnetism, the quantum vacuum, hyperfast travel, and superluminal quantum effects.