r/ProjectHailMary • u/MathiasMeyer • 1h ago
Book Discussion FCC approves test of space mirror, company wants to rent out daylight by sending up 50k mirrors
Maybe soon there will no longer be any nighttime if this gets popular enough. Crops utilising 24h sunlight, and cities wanting to reduce crime and conclude this is cheaper than more guards. Personally I like nighttime and I would be sad if darkness went away. Where do you think this will go?
Also interesting to discuss how this would impact the world of Project Hail Mary. If you could increase Earth sunlight enough to mitigate extreme ice age. Have someone done the maths on how many mirrors you need to compensate for the stated 10% loss of sunlight the Project Hail Mary book have as the premise. In theory you could keep daylight cycle but make specific daytime regions warmer.
Sources
NYT 10. july 2026
https://archive.ph/4z0ie
BBC 24. june 2026
https://www.sciencefocus.com/qanda/sunlight-on-demand