Aero Linx: Space Medicine Association (SMA) The history of space medicine and the history of the Space Medicine Association are both so closely integrated with the history of space exploration that they can not be discussed separately. Below is a time line integrating the various histories and yet allowing them to still be viewed separately as needed. The significant space medicine related publications from the journal of Aviation Space and Environmental Medicine (formerly the Journal of Aviation Medicine and the Journal of Aerospace Medicine) are included as down-linked files as well as previously published "Classics in Space Medicine" articles that discussed several of those papers and their historical significance.