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Because I think you’d be the person to ask: what is the feasibility of putting up a space sunshade to block some incoming solar radiation, using starship/super
by rotexo 5y ago
Because I think you’d be the person to ask: what is the feasibility of putting up a space sunshade to block some incoming solar radiation, using starship/super heavy?
- Robotbeat 5y agoLet’s say you need to reflect 1% of the light reaching the earth’s disc. If you’re using solar sail like devices with an average areal density of 10 g/m² and you have launch cost of $10 per kilogram (using LEO figures because devices made really lightweight can actually move themselves around with pressure from sunlight)… about $150 billion in launch costs. Material/spacecraft costs are a big question mark and can vary by 5-6 orders of magnitude, so let’s say it’s $10/kg, for a total of $300 billion. Still sub optimal compared to other solutions but it’s possible we may need to try something like that.
- rotexo 5y agoThanks for the breakdown. I like the idea of something we can remove more easily down the line, even if it’s more expensive. I suppose we probably won’t have the luxury, though.