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- Issue No. 126 | The Orbital Index https://orbitalindex.com/archive/2021-07-21-Issue-126/ 0 comments
- The material science of building a light sail to take us to Alpha Centauri | Ars Technica https://arstechnica.com/science/2018/05/the-material-science-of-building-a-light-sail-to-take-us-to-alpha-centauri/ 0 comments
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