This image shows the ENPULSION thruster during a ground test, where blue light appears as ions are released from liquid indium metal. The metal is heated and drawn to tiny tips where ions are emitted to generate thrust. On the space station, the MICATOS observes liquid metal flows in microgravity for future use in soldering and propulsion. Image courtesy of Enpulsion.

jsc2025e076913 (September 25, 2025) -- This image shows the ENPULSION thruster during a ground test, where blue light appears as ions are released from liquid indium metal. The metal is heated and drawn to tiny tips where ions are emitted to generate thrust. On the space station, the MICATOS observes liquid metal flows in microgravity for future use in soldering and propulsion. Image courtesy of Enpulsion.

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