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| Omfang
| xvii, 222 sider : illustrasjoner
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| Opplysninger
| Scout -- The farm -- Anomalies -- StarChips -- The lightsail hypothesis -- Seashells and buoys -- Learning from children -- Vastness -- Filters -- Astro-archaeology -- ʻOumuamua's wager -- Seeds -- Singularities.. - "Harvard's top astronomer lays out his controversial theory that our solar system was recently visited by advanced alien technology from a distant star"--
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| Emner
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| Geografisk emneord
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| Dewey
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| ISBN
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