NASA plans to send crewed missions to Mars over the next decade – but the 140 million-mile (225 million-kilometer) journey to the red planet could take several months to years round trip. This relatively long transit time is a result of the use of traditional chemical rocket fuel. An alternative technology to the chemically propelledContinue reading “Nuclear rockets could travel to Mars in half the time − but designing the reactors that would power them isn’t easy”
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