NASA said nuclearthermalrockets can be three or more times more efficient than conventional chemical propulsion and would reduce transit time, essential for an eventual mission to Mars.
There are several mega-rockets already being developed that ... to develop and demonstrate advanced nuclearthermal propulsion technology as soon as 2027," said Nasa boss Bill Nelson.
Rather than cram the whole system into an existing rocket, this would allow ... and human exploration using nuclear electric propulsion and nuclearthermal propulsion.
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