[[Christian]]s who reject naturalistic explanations of life such as the [[theory of evolution]] have presented arguments in the field of [[Christian apologetics]] concerning difficult to explain UFO's being spiritual in nature and not amenable to naturalistic explanation.<ref> | [[Christian]]s who reject naturalistic explanations of life such as the [[theory of evolution]] have presented arguments in the field of [[Christian apologetics]] concerning difficult to explain UFO's being spiritual in nature and not amenable to naturalistic explanation.<ref> |