NASA and DARPA announced in 2023 that they were working on a nuclear thermal rocket engine, with a planned launch demonstration as early as 2027. The big drive behind these new propulsion ...

NASA recently announced a collaboration with the Defense Advanced Research Projects Agency (DARPA) to demonstrate a nuclear thermal rocket engine in space to reduce transit time for human missions ...

Scientists have thought about attaching nuclear, thermal-rocket engines to ammonia-heavy asteroids and redirecting the asteroids so that they crash into Mars and release the meteor's ammonia and ...