Scout -- The farm -- Anomalies -- StarChips -- The lightsail hypothesis -- Seashells and buoys -- Learning from children -- Vastness -- Filters -- Astro-archaeology -- ʻOumuamua's wager -- Seeds -- Singularities -- Conclusion
Summary
"Harvard's top astronomer lays out his controversial theory that our solar system was recently visited by advanced alien technology from a distant star"-- Provided by publisher
Bibliography
Includes bibliographical references (pages 201-213) and index
