BerandaSpace & AstronomyNASA Advances Deep Space Missions with Breakthrough Radioisotope Fuel Test NASA Advances Deep Space Missions with Breakthrough Radioisotope Fuel Test Kuro News Juli 22, 2025 0 NASA tests revolutionary plutonium-238 fuel for deep space missions, enabling longer exploration with safer, more efficient power systems for Moon NASA Advances Deep Space Missions with Breakthrough Radioisotope Fuel Test