| Transport and Energy Module (TEM) | |
| Concept: | Gas-cooled reactor (GCR) |
| Design: | Keldysh Research Center Rosatom Roscosmos NIKIET institute |
| Maker: | Keldysh Research Center NIKIET institute |
| Generation: | Generation IV |
| Status: | Under development |
| Fuel Type: | Uranium |
| Fuel State: | Solid |
| Spectrum: | thermal |
| Coolant: | helium 78% - xenon 22% [1] |
| Thermal: | 3.8 MW |
| Electric: | 1 MWe (BWR-1) |
| Use: | Generation of electricity for propulsion |
TEM (ru|Транспортно-энергетический модуль, "transport and energy module\unit", NPPS in English) is an under development nuclear propulsion spacecraft with the intention to facilitate the transportation of large cargoes in deep space.[2] It will be constructed by the Russian Keldysh Research Center, NIKIET (Research and Design Institute of Power Engineering) institute,[3] and Rosatom.
A Russian project to create an uncrewed nuclear electric rocket spaceship for Solar system exploration. The first reactor tests are scheduled for the early 2020s; as of May 2020, the first orbital flight test of the reactor is planned for no earlier than 2030.[4] The first mission, named Zeus, is envisioned to operate for 50 months and deliver payloads to the Moon, Venus, and Jupiter through multiple gravity assists.[5]