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The #3Dprinted prototype was able to generate thrust more #efficiently than larger, more expensive #chemical rockets and outperformed existing droplet #electrospray engines. It can be produced rapidly and for a fraction of the #cost 馃挼 of traditional thrusters and even be fully made in #orbit 馃寣 https://news.mit.edu/2025/mit-engineers-develop-fully-3d-printed-electrospray-engine-0212