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It's NOT 'clean' #energy if ANY steps of the beginning-to-end/disposal processes are TOXIC - i.e. cause TOXIC substances to enter our environment. What about the #pollution generated to CREATE the #fuels of the #rockets used to lift the materials needed for #space-based energy facilities, as well as the BURNING of those fuels when the rockets are launched? #lithium, #nickel, ... mining, #solar panel manufacturing, ... are TOXIC !!! Used-up batteries and solar panels are TOXIC. And so on. ALSO, space-based microwave beams could be used as WEAPONS, and once a country became dependent on 'space power' an Enemy could easily devastate that country by taking out the beam generators using [asymmetric] space warfare. Large platforms can't be moved quickly in space, the laws of physics still apply there - e.g. Acceleration = Force / MASS, and they could only carry a limited amount of propellant and counter-measures. Amazing Physics @ amazing_physics 🚨: For the first time ever, the US has transmitted solar energy from space directly to Earth. In a breakthrough that sounds straight out of science fiction, Caltech’s 2023 Space Solar Power Demonstrator became the first project in history to successfully transmit detectable amounts of solar power generated in orbit down to Earth using microwaves. What many called impossible, the US researchers turned into reality by converting sunlight collected by solar cells in space into microwave energy and beaming it to ground receivers — a modest but historic proof-of-concept. This achievement delivers a sharp slap to the skeptics who’ve long dismissed space-based solar power as fantasy. On one hand, it opens the door to a revolutionary future of 24/7 clean energy, untouched by weather, night, or clouds. On the other, it sparks intense debate: Can this technology be scaled affordably to deliver real-world power, or will it remain an expensive demonstration reserved for wealthy nations and elite space programs?

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