{"id":"W2799740826","doi":"10.1089/ast.2018.1917","title":"Methane on Mars and Habitability: Challenges and Responses","year":2018,"lang":"en","type":"review","venue":"Astrobiology","topic":"Planetary Science and Exploration","field":"Physics and Astronomy","cited_by":99,"is_retracted":false,"has_abstract":true,"ca_institutions":"University of Toronto","funders":"Keck Institute for Space Studies","keywords":"Mars Exploration Program; Astrobiology; Habitability; Martian; Biosphere; Martian surface; Earth science; Extraterrestrial life; Atmosphere of Mars; Life on Mars; Atmosphere (unit); Biogeochemical cycle; Early Earth; Environmental science; Geology; Planet; Chemistry; Physics; Meteorology; Astronomy; Environmental chemistry","routes":{"ca_aff":true,"ca_fund":false,"ca_venue":false,"about_ca":false,"invisible_to_affiliation_only":false},"retraction":null,"screen":null,"direct_labels":[],"prediction":{"model_version":"metacan-v3-hybrid-931329e0061c","candidate_categories":[],"consensus_categories":[],"category_scores_codex":[0.008262696,0.0007368238,0.001363347,0.001062799,0.002050509,0.006511428,0.002557757,0.008656154,0.01332019],"category_scores_gemma":[0.01251777,0.000400134,0.0008257299,0.001139684,0.006736277,0.008944978,0.006887824,0.007998052,0.001781219],"about_ca_system_candidate":false,"about_ca_system_consensus":false,"about_ca_system_score_codex":0.002892084,"about_ca_system_score_gemma":0.003142828,"about_ca_topic_candidate":false,"about_ca_topic_consensus":false,"about_ca_topic_score_codex":0.006590559,"about_ca_topic_score_gemma":0.007506349,"domain_scores_codex":[0.9953702,0.002060842,0.0002671752,0.0007621798,0.0008007598,0.0007387046],"domain_scores_gemma":[0.9906793,0.003751612,0.0008530994,0.0003739647,0.00219101,0.00215099],"domain_codex":null,"domain_gemma":null,"domain_candidate":null,"domain_consensus":null,"study_design_codex":"not_applicable","study_design_gemma":"not_applicable","study_design_scores_codex":[0.0006364148,0.0003625888,0.0465609,0.004876377,0.0003629574,0.001319701,0.01392676,0.002944817,0.004140707,0.08361709,0.4362536,0.404998],"study_design_scores_gemma":[0.00003319622,0.0004355612,0.04279654,0.001680371,0.00006234628,0.0007712698,0.06634869,0.001734396,0.0007328124,0.07294441,0.812219,0.0002413922],"study_design_candidate":"not_applicable","study_design_consensus":"not_applicable","genre_codex":"commentary","genre_gemma":"review","genre_scores_codex":[0.03159577,0.07918394,0.001423512,0.8731276,0.004086365,0.00002864987,0.0007977458,0.0001468477,0.009609469],"genre_scores_gemma":[0.5540427,0.2006715,0.003834789,0.212018,0.01862027,0.0001853553,0.001469531,0.0001327285,0.009025271],"genre_candidate":"review","genre_consensus":null,"teacher_disagreement_score":0.01332019,"threshold_uncertainty_score":0.04456043,"prediction_status":"machine_predicted_unvalidated"},"machine_scores":{"provisional":true,"baseline":true,"maturity_gate_passed":false,"score_opus":0.08573438719613317,"score_gpt":0.3186940005709348,"score_spread":0.2329596133748016,"validation_status":"score_only:v0-immature-baseline","note":"Baseline scores from an immature model (maturity gate not passed). Scores rank; they never assert a category."}}