Sunstorm
Humanity must try to learn to work together while threatened by extinction from a deadly sunstorm; meanwhile the mysterious Firstborn are observing in silence.
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What Hacker News says
- Once again I'll mention "A Time Odyssey" series by Arthur C. Clarke and Stephen Baxter and to be exact, the second book in the series Sunstorm. In which Earth is preparing to mitigate - as much is possible, a massive solar eruption with megascale engineering projects. The major outer space idea is to reflect this eruption with a giant shield made of Fresnel lenses fully built in space and installed at Lagrange 1 point
- > at some point closer to the sun we could perhaps pull this angular "hack" to shade Earth using a smaller object?
A. C. Clarke and S. Baxter A Time Odyssey series 2nd book, "Sunstorm" focuses on destructive coronal mass ejection as main plot. One of the mankind solutions is a megaproject of shield modelled on Fresnel lens that is constructed on the Moon from regolith and shot up from electromagnetic slingshot in parts, which are then "mounted up" along with AI controlled mechanism in Lagrange point 1 in order to protect the planet.
It's of course a sci-fi portrayal of idea you mention and in this book humanity has a serious reason to build up this shield. As for reality, I can't tell if such structure build with current technology (a solar sail material most likely) would do anything - we doesn't seem to be bothered with global warming enough in first place.
- Sunstorm [1] by Arthur C. Clarke & Stephen Baxter, obliquely touches on this though with added aliens and a larger threat from the sun.
- Without going into too many details, something like this is used in the book Sunstorm by Arthur C. Clarke and Stephen Baxter.
