By the end of 2028, we will have launched our mission to Mars on the "first-ever nuclear reactor-powered interplanetary spacecraft" -- if Administrator Isaacman's ambitious goals come to pass.
Called the SR-1, it will begin a new era in space flight. “After decades of study," he said, "and billions spent on concepts that have never left Earth, America will finally get underway on nuclear power in space.”
Chemical propulsion (hydrogen and oxygen) is being used to power rockets now and will continue to enable escaping Earth's atmosphere. But nuclear will power movement in space. It's far more efficient. So, with the same volume of fuel, space craft will be able to go further and faster.
