Mercury Seven a team and solo. Grissom, Cooper, and Slayton were Air Force pilots; Shepard, Carpenter, and Schirra were Navy pilots, and Glenn was a Marine Corps pilot. All seven had attended a variety of postsecondary institutions in the 1940s. Of the five astronauts who had completed undergraduate degrees before being selected, two (Shepard and Schirra) were graduates of the United States Naval Academy. Having earned a Master of Arts degree in 1957 at the Naval War College, Shepard was the only selectee who held an advanced degree. Following a decade of intermittent studies, Cooper completed his degree as a mid-career student
Seven Soldiers rings of T.N.T. and Dan the Dyna-Mite), and the Whip (granddaughter of the Golden Age Whip). The team sets out to battle the Buffalo Spider (later on, the Sheeda are betrayed by Spyder in "Seven Soldiers of Victory" #1 in another nod to the original), only to be killed during an event known as the Harrowing. The seven miniseries follow seven other characters with indirect connections to the first group, each with their own art styles, genres, and character arcs. A central part of Morrison's idea for the current series is that, although the seven characters in question are each