Carried out by Ed White and lasting some 20 minutes, the spacewalk evened the score with the Soviets and set the stage for future NASA spacewalks. In his NASA oral history interview, McDivitt said “it probably wasn’t until after the flight that we really began to appreciate the fact that working outside a spacecraft was a lot different than working inside the spacecraft”
Gemini 4 became America’s longest spaceflight so far. But four days in space proved challenging, with leftover food containers and excrement bags hardly conducive to comfortable living. Spaghetti rehydrated via water-pistol, wax-tasting sandwiches, and a Roman Catholic fish dish offered sustenance, but little else. Daily hygiene involved mopping faces with damp cloths. And as Gemini 4 neared its end, a bearded McDivitt acquiesced that he felt “pretty darn woolly”.
After returning to Earth and setting foot on the deck of the aircraft carrier Wasp on June 7, McDivitt whooped with delight. Both men were healthy, negating doctors’ fears that NASA might wind up with two unconscious astronauts after four weightless days.
Apollo 9: Preparing for a Moon landing
McDivitt next helped with the development and testing of the Lunar Module (LM), a bug-like craft that would ferry future Apollo explorers to the Moon’s surface.
Teamed with astronauts Dave Scott and Rusty Schweickart, McDivitt dove into training for a low-Earth-orbit test flight of the entire Apollo spacecraft: the LM and Command Module (CM). Following the Apollo 1 fire in January 1967, missions were correspondingly renumbered, and McDivitt’s crew found themselves pointed at Apollo 8.
But riding a wave of confidence after the maiden flight of the Saturn V Moon rocket, NASA decided to fly Apollo 8 around the Moon in December 1968 with astronauts Frank Borman, Jim Lovell, and Bill Anders. McDivitt and crew was reassigned to Apollo 9. And after several days’ delay, at 11 A.M. EDT on March 3, 1969, the Saturn V roared aloft from Cape Kennedy’s Pad 39A.
Over the course of the next 10 days, in what space historian Andrew Chaikin called “a test-piloting bonanza,” McDivitt, Scott, and Schweickart wrung out the entire Apollo system.
McDivitt and Schweickart undocked the LM (nicknamed Spider) from the CM (Gumdrop) and withdrew to 114 miles (183 kilometers). They tested the LM’s throttleable descent engine and digital autopilot, while Schweickart (who had suffered acute space sickness earlier in the mission) made a spacewalk wearing the Apollo lunar surface suit.
On the final night of Apollo 9, McDivitt privately told Scott that he intended to retire from the astronaut corps.
“It was apparent to me that I wasn’t going to be the first guy to land on the Moon,” McDivitt later said in the oral history. “And being the second or third guy wasn’t that important to me.”