
Program: TDM
Lead: Marshall Space Flight Center
Start: 2020-10-01
NTP is an open-ended project focused on developing enabling technologies for nuclear thermal propulsion and demonstrating the robust functionality of those technologies through ground and flight testing. NTP systems have capabilities that can be directly leveraged, or readily evolved, for future NASA missions that include cis-lunar operating systems, deep-space science systems, and small and large cargo transportation systems for Mars human exploration. The technology challenges NTP is focused on solving are primarily driven by the extreme operational requirements for the fission reactor. Technology maturation investments are focused on finding solutions to the technology gaps for a reactor operating at temperatures exceeding 2800 K with a flowing hydrogen environment. The coupled effects between an operating reactor, integrated turbine machinery, and the thermal/neutronic balance also require investment in modeling and simulation capabilities to design NTP systems and predict how they will work in space.
The Earth-Moon economy needs a transportation infrastructure to support mobility using an efficient, evolvable system that has reduced reliance on Earth resources. Nuclear thermal propulsion systems can produce thrust levels comparable to chemical systems with a propellant mass efficiency that is two or more times greater than conventional chemical systems. The combination of propellant efficiency and high thrust has applications as an effective cislunar transportation system while also enabling fast transit to exploration and science target destinations throughout the solar system. Nuclear energy can provide solar-independent power for years with minimum need for refueling and maintenance.
Technology readiness
Starting TRL
3 / 9
Current TRL
3 / 9
Target TRL
5 / 9
Mission profile
Program
TDM
Responsible organization
Space Technology Mission Directorate
Lead organization
Marshall Space Flight Center
Technology area
Nuclear Thermal Propulsion
Destination
Moon_and_Cislunar, Mars, Others_Inside_the_Solar_System, Low_Earth_Orbit
Timeline
2020-10-01 — 2032-06-30
Project manager
Jason B Turpin