The demonstrator consists of two 6U cubesats designed by NRO’s advanced systems and tech directorate to support an “experimental technology research mission.”
Pratt & Whitney is planning further development of rotating detonation engine (RDE) technology following “positive test results” from a series of ground tests.
The Prometheus effort began in 2018 to perform science and tech experiments in the extreme reentry environment through a low-cost, high-cadence flight testbed.
Over the past half-century, the U.S. has introduced over 20 efforts to harness nuclear power and propulsion for space operations, only to cancel all of them.
The U.S. Air Force has proposed a high-altitude balloon program as an option for the broader Replicator initiative to accelerate new autonomous systems.