Imagine a field of solar panels floating silently in the endless day of Earth's orbit. Unlike their terrestrial cousins, this space-based solar array never faces nighttime, clouds, or atmospheric interference. There is overlap with Power Beaming and Wireless Power Transfer. On a cool, clear evening in May 2023, Caltech electrical engineer Ali Hajimiri and four members of his lab gathered on the roof of the Gordon and Betty Moore Laboratory of Engineering to await a signal. .
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