Nazarin sun nuna cewa biliyoyin shekaru da suka wuce yanayi na Venus ya fi kama da na Duniya fiye da yadda yake a yanzu, kuma cewa akwai yiwuwar akwai ruwa mai yawa na ruwa a farfajiyar, amma bayan tsawon shekaru miliyan 600 zuwa biliyan biliyan, an haifar da tasirin greenhouse wanda ya haifar da evaporation na wannan ruwa na asali, wanda ya haifar da matakan da ke da mahimmanci na gas din greenhouse a cikin yanayi. Ko da yake yanayin farfajiyar Venus ba su da karɓuwa ga kowane irin rayuwa irin na duniya wanda zai iya samuwa kafin wannan taron, akwai hasashe game da yiwuwar cewa rayuwa ta wanzu a cikin saman girgije na Venus, 50 km (31 mi) sama da farfajiyar, inda zafin jiki ya kasance tsakanin 303 da 353 K (30 da 80 ° C; da 86 ° F) amma yanayin yana da acidic. Ƙara yawan zafin jiki da iska ta hanyar ruwa mai ruwa a cikin farfajiyar Venus, amma bayan tsawon shekaru 600 zuwa biliyan da yawa, girgije ya haifar da wani sakamako na greenhouse wanda ya haifar da fitarwa na wannan ruwa na asali, wanda ya haifar da wani nau'i mai mahimmanci na iskar gas
300 km/h (185 mph)