Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Kodayake Mars ba ta da wata shaida game da tsarin magnetic na duniya, lura ya nuna cewa sassan ɓangaren duniyar sun kasance magnetized, suna nuna cewa sauye-sauyen polarity na filin dipole ya faru a baya. Wannan paleomagnetism na magnetically m ma'adanai ne kama da alternating makada samu a duniya teku bene. Wani ka'idar, wanda aka buga a 1999 kuma aka sake bincika shi a watan Oktoba na 2005 (tare da taimakon Mars Global Surveyor), shine cewa waɗannan rukunin suna ba da shawarar ayyukan tectonic plate a kan Mars biliyan huɗu da suka gabata, kafin dynamo na duniya ya daina aiki kuma filin magnetic na duniyar ya ɓace. Ana tunanin cewa, yayin samuwar Tsarin Rana, an halicci Mars ne sakamakon wani tsari na stochastic na gudana-baya na kayan abu daga faifan protoplanetary wanda ke kewaye da Rana. Mars yana da halaye na sinadarai na musamman da yawa wanda ya haifar da matsayinsa a cikin Tsarin Rana. Abubuwan da ke da ƙananan wuraren tafasa, kamar su chlorine, phosphorus, da sulfur, sun fi yawa a duniyar Mars fiye da Duniya; waɗannan abubuwa sun iya turawa daga waje ta hanyar iskar rana mai ƙarfi na Sun. Bayan samuwar taurari, duk an ƙaddamar da abin da ake kira "Late Heavy Bombardment". Kimanin kashi 60% na farfajiyar Mars yana nuna rikodin tasirin daga wannan zamanin, yayin da yawancin ragowar farfajiyar mai yiwuwa ta kasance ta hanyar tasirin tasirin da waɗannan abubuwan suka haifar. Akwai shaidar wani babban tasirin tasirin a arewacin arewacin Mars, wanda ya kai kilomita 10,600 da 8,500 (6,600 da 5,300 mi), ko kusan sau hudu girman girman Kudancin Kudancin Moon <unk> Aitken basin, mafi girman tasirin tasirin da aka gano. Wannan ka'idar ta nuna cewa wani abu mai girman Pluto ya buge duniyar Mars kimanin shekaru biliyan huɗu da suka wuce. Wannan taron, wanda ake tunanin shine sanadiyar rabuwa na hemispheric na Mars, ya haifar da kwarin Borealis mai santsi wanda ya rufe kashi 40% na duniyar.  Tambaya: Yaya tsawon lokacin da wannan ka'idar ta nuna cewa Mars ta buga ta da abu?
shekaru biliyan hudu da suka wuce