Alpha

The material science of building a light sail to take us to Alpha Centauri

14 days ago   |   By Ars Technica

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It has been about two years since Yuri Milner announced his most audacious piece of science-focused philanthropy: Breakthrough Starshot , an attempt to send hardware to Alpha Centauri by mid-century. Although the technology involved is a reasonable extrapolation of things we already know how to make, being able to create materials and technology that create that extrapolation is a serious challenge. So much of Breakthrough Starshot's early funding has gone to figuring out what improvements on current technology are needed.
Perhaps the least well-understood developments we need...
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