Not sure if happy or sad.
Scientists claim they're the first to transmit space-based solar power to Earth (msn.com) (https://www.msn.com/en-us/news/technology/scientists-claim-they-re-the-first-to-transmit-space-based-solar-power-to-earth/ar-AA1c5KxZ?ocid=msedgdhp&pc=U531&cvid=f8d1e145bd7f4cc98f2a065ab99fd02a&ei=108)
QuoteA team of researchers from Caltech announced on Thursday (https://gizmodo.com/scientists-beam-space-based-solar-power-earth-first-tim-1850500731) that their space-borne prototype, called the Space Solar Power Demonstrator (SSPD-1), had collected sunlight, converted it into electricity and beamed it to microwave receivers installed on a rooftop on Caltech's Pasadena campus.
Any idea of what the recovered power of it is? The article referenced a JAXA success of 1.8 kW over 50 meters. Is it useful after going thru ~5 miles of atmosphere?