Disk Around a Star
February 1, 2014 9:55 AM Subscribe
An Alderson Disk is a science fiction megastructure imagined first by scientist Dan Alderson. It's a solid disk that is thousands of kilometers thick, with a circumference equal to the orbit of Mars or Jupiter. The habitable zone would be on both sides of the disk and would be millions of times the surface area of the Earth. Not much theoretical work has been done on its feasibility, but some have tried. Missile Gap, by MeFi's own Charles Stross, which won the Locus readers' award for best novella of 2006, features a 1960s Earth transposed to an Alderson disk and is available for free on the publisher's website.
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