Wiktionary
fission rockets
n. (fission rocket English)
Usage examples of "fission rockets".
Fission power plants are now a fifty-year-old technology, but fission rockets require too much shielding and operate at too low a temperature to be practical, even ignoring the specter of accident and widespread radiological contamination.
The Nerva-class fission rockets are used only for takeoff from Earth, where thrust and efficiency count responsiveness and maneuverability count for too much during a powered landing.
The Nerva-class fission rockets are used only for takeoff from Earth, where thrust and efficiency count.