A company is planning to sell sunlight after dark, beamed down from mirrors in space. Would you buy sunlight at night?

Nov 6, 2026 · 8:10 AM UTC

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Each mirror, about 18 metres (59 feet) across, flies 600 km (373 miles) up along the line between day and night, so it stays in sunshine while the ground below has gone dark, and it tilts to throw that sunlight onto one place.
Image from Run The Sim (@RunTheSimLab)
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The light spreads into a patch about 12 km (8 miles) wide, and every mirror races past at 17,000 mph, so it can only hold the spot for a few minutes before the next one takes over.
Image from Run The Sim (@RunTheSimLab)
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An hour after sunset one mirror gives just a thirteenth of a full Moon's light, so lighting a single street would take about 520 of them at once, and about two hours after sunset they all drop below the horizon until they come back before dawn.
Image from Run The Sim (@RunTheSimLab)
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No. It is unnatural for body.
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Un arma peligrosísima: te enfocan solo unas 50 "cuentas" (unidades de espejos) a una misma casa y te incineran como a una hormiga bajo la lupa.
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