{"cited_by_count":127157,"description":"This cluster of papers explores the search for extraterrestrial life and intelligence, including topics such as astrobiology, SETI (Search for Extraterrestrial Intelligence), galactic habitable zones, global catastrophic risks, the Fermi Paradox, planetary biology, technosignatures, and space exploration.","display_name":"Space Science and Extraterrestrial Life","domain_id":"3","external_ids":{"openalex":"https://openalex.org/T12788","wikipedia":"https://en.wikipedia.org/wiki/Search_for_extraterrestrial_intelligence"},"field_id":"31","id":"T12788","keywords":[{"display_name":"astrobiology","id":"astrobiology","score":0.3199,"url":"https://openalex.org/keywords/astrobiology"},{"display_name":"extraterrestrial life","id":"extraterrestrial-life","score":0.53,"url":"https://openalex.org/keywords/extraterrestrial-life"},{"display_name":"SETI","id":"seti","score":0.8229,"url":"https://openalex.org/keywords/seti"},{"display_name":"extraterrestrial intelligence","id":"extraterrestrial-intelligence","score":0.7607,"url":"https://openalex.org/keywords/extraterrestrial-intelligence"},{"display_name":"habitability","id":"habitability","score":0.2192,"url":"https://openalex.org/keywords/habitability"},{"display_name":"biosignatures","id":"biosignatures","score":0.2721,"url":"https://openalex.org/keywords/biosignatures"},{"display_name":"Fermi paradox","id":"fermi-paradox","score":0.7574,"url":"https://openalex.org/keywords/fermi-paradox"},{"display_name":"search for extraterrestrial life","id":"search-for-extraterrestrial-life","score":0.6209,"url":"https://openalex.org/keywords/search-for-extraterrestrial-life"},{"display_name":"habitable zone","id":"habitable-zone","score":0.2031,"url":"https://openalex.org/keywords/habitable-zone"},{"display_name":"space colonization","id":"space-colonization","score":0.2008,"url":"https://openalex.org/keywords/space-colonization"},{"display_name":"extraterrestrial civilizations","id":"extraterrestrial-civilizations","score":0.6979,"url":"https://openalex.org/keywords/extraterrestrial-civilizations"},{"display_name":"life detection","id":"life-detection","score":0.3184,"url":"https://openalex.org/keywords/life-detection"},{"display_name":"planetary protection","id":"planetary-protection","score":0.2154,"url":"https://openalex.org/keywords/planetary-protection"},{"display_name":"interstellar communication","id":"interstellar-communication","score":0.7479,"url":"https://openalex.org/keywords/interstellar-communication"},{"display_name":"interstellar travel","id":"interstellar-travel","score":0.2639,"url":"https://openalex.org/keywords/interstellar-travel"},{"display_name":"habitable planets","id":"habitable-planets","score":0.4265,"url":"https://openalex.org/keywords/habitable-planets"},{"display_name":"technosignatures","id":"technosignatures","score":0.8515,"url":"https://openalex.org/keywords/technosignatures"},{"display_name":"life in the universe","id":"life-in-the-universe","score":0.7557,"url":"https://openalex.org/keywords/life-in-the-universe"},{"display_name":"Drake equation","id":"drake-equation","score":0.8643,"url":"https://openalex.org/keywords/drake-equation"},{"display_name":"exoplanet habitability","id":"exoplanet-habitability","score":0.2984,"url":"https://openalex.org/keywords/exoplanet-habitability"},{"display_name":"search for life","id":"search-for-life","score":0.4189,"url":"https://openalex.org/keywords/search-for-life"},{"display_name":"panspermia","id":"panspermia","score":0.3454,"url":"https://openalex.org/keywords/panspermia"},{"display_name":"Breakthrough Listen","id":"breakthrough-listen","score":0.6697,"url":"https://openalex.org/keywords/breakthrough-listen"},{"display_name":"search for life in the universe","id":"search-for-life-in-the-universe","score":0.8374,"url":"https://openalex.org/keywords/search-for-life-in-the-universe"},{"display_name":"Carl Sagan","id":"carl-sagan","score":0.2091,"url":"https://openalex.org/keywords/carl-sagan"}],"legacy_keywords":["Extraterrestrial Life","Astrobiology","SETI","Galactic Habitable Zone","Intelligent Life","Global Catastrophic Risks","Fermi Paradox","Planetary Biology","Technosignatures","Space Exploration"],"openalex_id":"https://openalex.org/T12788","source_created_date":"2024-01-23T15:27:15","source_updated_date":"2026-10-17T03:02:00","subfield_id":"3103","url":"/topics/T12788","works_api_url":"https://api.openalex.org/works?filter=topics.id:T12788","works_count":30249,"label":"Space Science and Extraterrestrial Life","provider":"openalex","revision":"c226026eb84504b2","taxonomy_revision":"f050b5d4780b1289","title":"Space Science and Extraterrestrial Life","kind":"topic-directory","aeo_cohort":"topic-directory","catalogue_revision":"f050b5d4780b1289","numeric_address":"38355400274112119","address_version":"morton4x16-v1","coordinates":[3,31,3103,12788],"answer_status":"Directory metadata; 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