{"id":"https://openalex.org/W1987274263","doi":"https://doi.org/10.1038/323044a0","title":"Discovery of organic grains in comet Halley","display_name":"Discovery of organic grains in comet Halley","publication_year":1986,"publication_date":"1986-09-01","ids":{"openalex":"https://openalex.org/W1987274263","doi":"https://doi.org/10.1038/323044a0","mag":"1987274263"},"language":"en","primary_location":{"id":"doi:10.1038/323044a0","doi":"https://doi.org/10.1038/323044a0","is_oa":false,"landing_page_url":"https://doi.org/10.1038/323044a0","pdf_url":null,"source":{"id":"https://openalex.org/S137773608","display_name":"Nature","issn_l":"0028-0836","issn":["0028-0836","1476-4687"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","erih-plus","jufo-3","ki-jl-3","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nature","raw_type":"journal-article"},"volume":null,"type":"article","is_traditional":true,"indexed_in":["crossref"],"open_access":{"is_oa":false,"oa_status":"closed","oa_url":null,"any_repository_has_fulltext":false},"authorships":[{"author_position":"first","author":{"id":"https://openalex.org/A5052077765","display_name":"Dayal T. Wickramasinghe","orcid":"https://orcid.org/0000-0003-3782-0056","observed_orcids":["https://orcid.org/0000-0003-3782-0056"]},"institutions":[{"id":"https://openalex.org/I118347636","display_name":"Australian National University","ror":"https://ror.org/019wvm592","country_code":"AU","type":"education","lineage":["https://openalex.org/I118347636"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"D.T. Wickramasinghe","raw_affiliation_strings":["Department of Mathematics, Australian National University, Canberra, ACT 2600, Australia","Department of Mathematics, Australian National University, Canberra, (Australia)"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Department of Mathematics, Australian National University, Canberra, ACT 2600, Australia","institution_ids":["https://openalex.org/I118347636"]},{"raw_affiliation_string":"Department of Mathematics, Australian National University, Canberra, (Australia)","institution_ids":["https://openalex.org/I118347636"]}]},{"author_position":"last","author":{"id":"https://openalex.org/A5113880306","display_name":"D. A. Allen","orcid":null,"observed_orcids":[]},"institutions":[{"id":"https://openalex.org/I2802629923","display_name":"Australian Astronomical Observatory","ror":"https://ror.org/030cszc07","country_code":"AU","type":"facility","lineage":["https://openalex.org/I118347636","https://openalex.org/I2802629923","https://openalex.org/I3129270235"]}],"countries":["AU"],"is_corresponding":false,"raw_author_name":"D.A. Allen","raw_affiliation_strings":["Anglo-Australian Observatory, Epping, NSW, 2121, Australia","Anglo-Australian Observatory, Epping, Australia"],"raw_orcid":null,"affiliations":[{"raw_affiliation_string":"Anglo-Australian Observatory, Epping, NSW, 2121, Australia","institution_ids":["https://openalex.org/I2802629923"]},{"raw_affiliation_string":"Anglo-Australian Observatory, Epping, Australia","institution_ids":["https://openalex.org/I2802629923"]}]}],"institutions":[],"countries_distinct_count":1,"institutions_distinct_count":2,"corresponding_author_ids":[],"corresponding_institution_ids":[],"apc_list":{"value":12690,"currency":"USD","value_usd":12690},"apc_paid":null,"fwci":15.2443,"has_fulltext":false,"cited_by_count":76,"citation_normalized_percentile":{"value":0.99233844,"is_in_top_1_percent":true,"is_in_top_10_percent":true},"cited_by_percentile_year":{"min":87,"max":97},"biblio":{"volume":"323","issue":"6083","first_page":"44","last_page":"46"},"is_retracted":false,"is_paratext":false,"is_xpac":false,"primary_topic":{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.9794999957084656,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},"topics":[{"id":"https://openalex.org/T10325","display_name":"Astro and Planetary Science","score":0.9794999957084656,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10477","display_name":"Astrophysics and Star Formation Studies","score":0.019500000402331352,"subfield":{"id":"https://openalex.org/subfields/3103","display_name":"Astronomy and Astrophysics"},"field":{"id":"https://openalex.org/fields/31","display_name":"Physics and Astronomy"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}},{"id":"https://openalex.org/T10406","display_name":"Planetary Science and Exploration","score":0.00019999999494757503,"subfield":{"id":"https://openalex.org/subfields/1912","display_name":"Space and Planetary Science"},"field":{"id":"https://openalex.org/fields/19","display_name":"Earth and Planetary Sciences"},"domain":{"id":"https://openalex.org/domains/3","display_name":"Physical Sciences"}}],"keywords":[{"id":"https://openalex.org/keywords/halley-s-comet","display_name":"Halley's Comet","score":0.925000011920929},{"id":"https://openalex.org/keywords/organic-grains","display_name":"organic grains","score":0.9620000123977661},{"id":"https://openalex.org/keywords/interstellar-dust","display_name":"interstellar dust","score":0.6800000071525574},{"id":"https://openalex.org/keywords/micrometeorites","display_name":"micrometeorites","score":0.9190000295639038}],"concepts":[{"id":"https://openalex.org/C159965564","wikidata":"https://www.wikidata.org/wiki/Q844866","display_name":"Comet dust","level":4,"score":0.8585510849952698},{"id":"https://openalex.org/C539450922","wikidata":"https://www.wikidata.org/wiki/Q544","display_name":"Solar System","level":2,"score":0.7368319034576416},{"id":"https://openalex.org/C94081185","wikidata":"https://www.wikidata.org/wiki/Q3559","display_name":"Comet","level":2,"score":0.7354472279548645},{"id":"https://openalex.org/C121332964","wikidata":"https://www.wikidata.org/wiki/Q413","display_name":"Physics","level":0,"score":0.6481973528862},{"id":"https://openalex.org/C93436676","wikidata":"https://www.wikidata.org/wiki/Q3535","display_name":"Formation and evolution of the Solar System","level":3,"score":0.6188386678695679},{"id":"https://openalex.org/C44870925","wikidata":"https://www.wikidata.org/wiki/Q37547","display_name":"Astrophysics","level":1,"score":0.6102361679077148},{"id":"https://openalex.org/C1276947","wikidata":"https://www.wikidata.org/wiki/Q333","display_name":"Astronomy","level":1,"score":0.6060670614242554},{"id":"https://openalex.org/C87355193","wikidata":"https://www.wikidata.org/wiki/Q411","display_name":"Astrobiology","level":1,"score":0.5724163055419922},{"id":"https://openalex.org/C3345301","wikidata":"https://www.wikidata.org/wiki/Q1773534","display_name":"Comet nucleus","level":3,"score":0.5526257753372192},{"id":"https://openalex.org/C32449521","wikidata":"https://www.wikidata.org/wiki/Q986563","display_name":"Interplanetary dust cloud","level":3,"score":0.5486944913864136},{"id":"https://openalex.org/C190841160","wikidata":"https://www.wikidata.org/wiki/Q193384","display_name":"Cosmic dust","level":2,"score":0.5420064330101013},{"id":"https://openalex.org/C2779496878","wikidata":"https://www.wikidata.org/wiki/Q42372","display_name":"Nebula","level":3,"score":0.5119255781173706},{"id":"https://openalex.org/C98444146","wikidata":"https://www.wikidata.org/wiki/Q318","display_name":"Galaxy","level":2,"score":0.5114330649375916},{"id":"https://openalex.org/C196939603","wikidata":"https://www.wikidata.org/wiki/Q41872","display_name":"Interstellar medium","level":3,"score":0.49366554617881775},{"id":"https://openalex.org/C198738867","wikidata":"https://www.wikidata.org/wiki/Q559875","display_name":"Comet tail","level":4,"score":0.4860685169696808},{"id":"https://openalex.org/C2779544647","wikidata":"https://www.wikidata.org/wiki/Q23054","display_name":"Halley's Comet","level":3,"score":0.47114506363868713},{"id":"https://openalex.org/C2780928442","wikidata":"https://www.wikidata.org/wiki/Q6553027","display_name":"Line-of-sight","level":2,"score":0.4288179874420166},{"id":"https://openalex.org/C108411613","wikidata":"https://www.wikidata.org/wiki/Q79833","display_name":"Solar wind","level":3,"score":0.31866902112960815},{"id":"https://openalex.org/C150846664","wikidata":"https://www.wikidata.org/wiki/Q7602306","display_name":"Stars","level":2,"score":0.195234477519989},{"id":"https://openalex.org/C115260700","wikidata":"https://www.wikidata.org/wiki/Q11408","display_name":"Magnetic field","level":2,"score":0.0},{"id":"https://openalex.org/C62520636","wikidata":"https://www.wikidata.org/wiki/Q944","display_name":"Quantum mechanics","level":1,"score":0.0}],"mesh":[],"locations_count":1,"locations":[{"id":"doi:10.1038/323044a0","doi":"https://doi.org/10.1038/323044a0","is_oa":false,"landing_page_url":"https://doi.org/10.1038/323044a0","pdf_url":null,"source":{"id":"https://openalex.org/S137773608","display_name":"Nature","issn_l":"0028-0836","issn":["0028-0836","1476-4687"],"is_oa":false,"is_in_doaj":false,"is_core":true,"listed_in":["anvur-class-a","anvur-scientific","cwts-core","dongbi-a","doyens","erih-plus","jufo-3","ki-jl-3","medline","norway-2","poland-200","russia-white-list-1","vabb-shw"],"host_organization":"https://openalex.org/P4310319908","host_organization_name":"Nature Portfolio","host_organization_lineage":["https://openalex.org/P4310319908","https://openalex.org/P4310319965"],"host_organization_lineage_names":["Nature Portfolio","Springer Nature"],"type":"journal"},"license":null,"license_id":null,"version":"publishedVersion","is_accepted":true,"is_published":true,"raw_source_name":"Nature","raw_type":"journal-article"}],"best_oa_location":null,"sustainable_development_goals":[],"study_designs":[],"awards":[],"funders":[],"has_content":{"pdf":false,"grobid_xml":false},"content_urls":null,"referenced_works_count":18,"referenced_works":["https://openalex.org/W1666412884","https://openalex.org/W1966365041","https://openalex.org/W1972337476","https://openalex.org/W1996899759","https://openalex.org/W1999389250","https://openalex.org/W2003577410","https://openalex.org/W2009307150","https://openalex.org/W2020553650","https://openalex.org/W2022106077","https://openalex.org/W2023200520","https://openalex.org/W2050702660","https://openalex.org/W2053681769","https://openalex.org/W2077554378","https://openalex.org/W2078526848","https://openalex.org/W2331175717","https://openalex.org/W3015879059","https://openalex.org/W3091980630","https://openalex.org/W4256295334"],"related_works":["https://openalex.org/W2026622917","https://openalex.org/W3088978775","https://openalex.org/W2106790961","https://openalex.org/W1597931158","https://openalex.org/W2016684599","https://openalex.org/W1996640203","https://openalex.org/W2002305304","https://openalex.org/W3092418889","https://openalex.org/W2172261404","https://openalex.org/W4244441544"],"abstract_inverted_index":null,"counts_by_year":[{"year":2025,"cited_by_count":4},{"year":2021,"cited_by_count":1},{"year":2020,"cited_by_count":1},{"year":2019,"cited_by_count":2},{"year":2018,"cited_by_count":3}],"updated_date":"2026-11-04T10:54:05.112534","created_date":"2016-06-24T00:00:00"}