Caltech Space Solar Power Project (SSPD) launched into orbit a prototype to beam power to Earth and has transmitted power from orbit to another receiver in
A space solar power prototype that was launched into orbit in January is operational and has demonstrated its ability to wirelessly transmit power in space and to beam detectable power to Earth for the first time.
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The Caltech scientist leading the study said the breakthrough could allow for energy to be sent to remote regions and areas devastated by war or natural disaster.