{"id":"obr:work:tunnel-in-the-sky-q4460565","slug":"tunnel-in-the-sky-q4460565","url":"https://openbookrank.com/en/book/tunnel-in-the-sky-q4460565","urls":{"en":"https://openbookrank.com/en/book/tunnel-in-the-sky-q4460565","it":"https://openbookrank.com/it/libro/tunnel-in-the-sky-q4460565","ja":"https://openbookrank.com/ja/hon/tunnel-in-the-sky-q4460565","zh-hant":"https://openbookrank.com/zh-hant/tushu/tunnel-in-the-sky-q4460565"},"title":"Tunnel in the Sky","titles":{"sv":"Tunnel i skyn","it":"La via delle stelle","zh":"星际迷航","en":"Tunnel in the Sky","es":"Túnel en el espacio","fr":"Destination Outreterres","ja":"ルナ・ゲートの彼方","ko":"하늘의 터널","uk":"Тунель до небес"},"author":{"id":"obr:author:robert-a-heinlein","name":"Robert A. Heinlein","api":"https://openbookrank.com/api/v1/authors/robert-a-heinlein.json"},"year":1955,"pages":272,"originalLanguage":null,"identifiers":{"wikidata":"Q4460565","openLibrary":null,"isbn13":null,"isbns":[],"isbnByLanguage":{},"googleBooks":null,"hardcover":"tunnel-in-the-sky","amazon":null},"score":{"value":null,"scale":10,"ratings":66,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":71,"wikipediaPageviews":null,"editions":null},"series":{"id":"obr:series:heinlein-juveniles","slug":"heinlein-juveniles","title":"Heinlein juveniles","position":8,"volumes":11,"api":"https://openbookrank.com/api/v1/series/heinlein-juveniles.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"Tunnel in the Sky\" by Robert A. Heinlein but does not score it: it has fewer than 50 reader ratings (snapshot 2026-10-28).","snapshot":"2026-10-28","license":"CC-BY-4.0"}