NASA has announced it will launch a nuclear-powered spacecraft to Mars before the end of 2028. The effort would mark a world first—no interplanetary spacecraft mission has ever been powered by nuclear propulsion before—and a massive boost for potential missions that would go farther out into space and travel faster than traditional liquid-fueled craft could manage.
According to NASA, the mission will prove nuclear propulsion can power spacecraft “and activate the industrial base for future fission power systems across propulsion, surface, and long-duration missions.” These could include missions to planets and other bodies in the outer solar system. Currently, exploring these distant worlds would be impossible with traditional craft, which would require massive amounts of liquid fuel to travel such distances. Only spacecraft that are small enough to be battery- or solar-powered, such as the Voyager and Juno missions, have reached these outer realms of our solar system.
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