How Might Next-Generation Propulsion Technologies Reduce the Environmental Impact of Space Launches?

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As space missions become more frequent, the need for sustainable and eco-friendly propulsion systems grows increasingly important. What advancements in propulsion, such as electric or hybrid engines, do you think hold the greatest promise for lowering carbon emissions and mitigating other environmental concerns? How might these technologies revolutionize not only the economics of space travel but also our commitment to protecting Earth’s atmosphere?