NASA's nuclear rocket program canceled as Trump budget slashes space science

The Trump administration’s proposed NASA budget for fiscal year 2026 includes drastic cuts to space science funding, slashing it from $7.5 billion in 2025 to $3.9 billion. Among the programs targeted for elimination is DRACO, a nuclear thermal propulsion demonstrator developed by NASA and DARPA. DRACO was designed to use a nuclear reactor to heat liquid hydrogen fuel to extremely high temperatures, potentially doubling the efficiency of traditional chemical rockets and significantly reducing travel times for deep space missions, such as trips to Mars. The cancellation comes despite DRACO nearing its estimated launch date and reflects a broader pattern of prioritizing projects with quicker political or financial returns over long-term, generational technologies. The budget proposal has faced strong criticism from scientists, lawmakers, and space policy experts who warn that such cuts could lead to a decline in U.S. leadership in space exploration. NASA’s acting administrator, Janet Petro, justified ending nuclear propulsion projects by stating that near-term human exploration and science goals do