deep Mars crosser References deep Mars crosser astronomy Ask Anything Homework Help Written by The Information Architects of Encyclopaedia Britannica The Information Architects maintain a master list of the topics included in the corpus of Encyclopædia Britannica, and create and manage the relationships between them. The Information Architects of Encyclopaedia Britannica Britannica AI Ask Anything Learn about this topic in these articles: asteroid/ Near-Earth asteroids67 AU) and deep Mars crossers (perihelion distances greater than 1.3 AU but less than 1.58 AU). Read More67 AU) and deep Mars crossers (perihelion distances greater than 1.3 AU but less than 1.58 AU). Read More