NASA is planning crewed missions to Mars within the next decade, but the 140-million-mile journey could take several months to years using current rocket technology. The long transit time is due to traditional chemical rocket fuel, but there’s a faster alternative in development: nuclear thermal propulsion (NTP). This technology, powered by nuclear fission, could potentially cut the trip to Mars in half.
Nuclear fission, the process of splitting an atom to release immense energy, is already widely used in power generation and nuclear submarines. NASA and the Defense Advanced Research Projects Agency (DARPA) are now collaborating to bring this technology to space. They aim to demonstrate a prototype NTP system in space by 2027, which would be a groundbreaking achievement for U.S. space exploration.
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