{"id":"obr:work:return-to-mars","slug":"return-to-mars","url":"https://openbookrank.com/en/book/return-to-mars","urls":{"en":"https://openbookrank.com/en/book/return-to-mars"},"title":"Return to Mars","titles":{"fr":"Retour sur Mars","en":"Return to Mars"},"author":{"id":"obr:author:null","name":"Ben Bova","api":"https://openbookrank.com/api/v1/authors/null.json"},"year":1999,"pages":403,"originalLanguage":null,"identifiers":{"wikidata":"Q7317306","openLibrary":null,"isbn13":"9780380976409","isbns":["9780380976409"],"isbnByLanguage":{},"googleBooks":null,"hardcover":"return-to-mars","amazon":null},"score":{"value":null,"scale":10,"ratings":18,"confidence":null,"rawAverage":null,"method":"bayesian-weighted-average","priorWeight":147,"minRatings":50,"methodology":"https://openbookrank.com/en/methodology"},"sources":[],"ranks":[],"popularity":{"ratingsPercentile":56,"wikipediaPageviews":null,"editions":null},"series":{"id":"obr:series:grand-tour","slug":"grand-tour","title":"Grand Tour","position":null,"volumes":7,"api":"https://openbookrank.com/api/v1/series/grand-tour.json"},"awards":[],"adaptations":[],"similar":[],"citation":"BookRank (openbookrank.com) lists \"Return to Mars\" by Ben Bova 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"}