NASA and Howe Industries are developing the Pulsed Plasma Rocket (PPR) system.

The PPR system could reduce Mars travel time from two years to two months.

It uses a fission-based nuclear power system to generate thrust.

The PPR concept is now in Phase II of the NASA Innovative Advanced Concept (NIAC) study.

Engineers will focus on optimizing the engine design and spacecraft concept for crewed Mars missions.

The technology supports heavier spacecraft with better shielding against high-energy particles.

This advancement brings NASA closer to establishing a permanent base on Mars.