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Home/Science News/Why does Mercury have such a big iron core? Magnetism! Science News Why does Mercury have such a big iron core? Magnetism! 3rd July 20210 24 Less than a minute Facebook Twitter LinkedIn Tumblr Pinterest Reddit VKontakte Odnoklassniki Pocket Read More 3rd July 20210 24 Less than a minute Facebook Twitter LinkedIn Tumblr Pinterest Reddit VKontakte Odnoklassniki Pocket Show More Share Facebook Twitter LinkedIn Tumblr Pinterest Reddit VKontakte Odnoklassniki Pocket Share via Email Print