Geoffrey Landis
NASA Glenn Research Center
Launching ultra-miniature probes to fly past an exoplanet a nearby star using a laser-pushed sail is now being seriously discussed as a mission, primarily by the “Breakthrough Starshot” program. An interstellar probe will require power for both observations and communications when it reaches the target exoplanet system… but the proposed mission gives a mass allocation that is milligrams, far less than the mass of any real-world power system. We propose harvesting power from the motion of the spacecraft as it passes through the target system’s ambient environment.