NASA, “Pulsed Fission-Fusion (PuFF) Propulsion System” — NIAC concept page

https://www.nasa.gov/general/pulsed-fission-fusion-puff-propulsion-system/

How the Institute flags it

frontier 3 times

Cited on 3 pages

• Antimatter Propulsion
• Fusion Spacecraft
• Interstellar Probes