Ask Ethan: Could we save the Earth by migrating it away from the Sun?
Ethan Siegel

Hi Ethan,

Thx for those fine and always interesting papers!

You know about solar sail, don’t you ?

Could you redo the calculus with both usages : a solar panel that gives energy AND give umbra to earth in the way oceans do not boil ?

Yes it’s hard to push the earth faster to get it away from sun, but with this combination of functions, the requested energy is certainly far less…

And the solar panel surface could even be controlled for meteo regulation…

A kind of “Dyson sphere”, but not to designed around the sun to control a type II civilization energy use, only a Type I : mastering all the energy of the earth.

Best regards from France,


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