[Apollo 9]

Apollo 9 was an Earth-orbital mission, with this fantastic image taken in March 1969 while the Command Module Gumdrop and the Lunar Module Spider are hard docked. Here, Command Module Pilot David R. Scott performs a “stand-up EVA” in the open hatch of the Command Module Gumdrop. 

Commander Jim McDivitt, observing Scott from inside the depressurized Lunar Module, commented that Scott looked like a “mole in a hole” as he popped up from the CM hatch. McDivitt also witnessed objects floating out of the open CM hatch. "Things are still falling out up there," he told Scott. "What are you doing, throwing everything overboard?" 

While Scott was completing a stand up EVA, Lunar Module Pilot Rusty Schweickart was completing his own spacewalk outside the LM. Scott did not emerge further from the CM Gumdrop’s hatch as he was not equipped with his Personal Life Support System (PLSS). But Schweickart, wearing his PLSS, was able to go further outside the LM and took this photograph of Scott. 

From the Apollo 9 Mission Transcript, during their historic dual EVA:

PLSS (Schweickart): Okay. I’m going to let the camera run here.

SPIDER (McDivitt): Davey, come on out, wherever you are.

PLSS (Schweickart): Stand by. Let me get away my little pushbutton. Now we’re all taking pictures of everybody taking pictures. 

[...]

PLSS (Schweickart): Why don’t you lean over here again [Dave]; I’d sure like to get a picture of that whole scene.

A noteworthy aspect of this photograph is Scott’s red helmet. The helmets worn by both Scott and his crewmate LMP Rusty Schweickart had the same shell as those worn on EVAs on the lunar surface in later missions. Later Apollo astronaut helmets featured a white thermal and micrometeoroid protective cover over the red shell. 

REFERENCES

Apollo 9 PAO Mission Commentary Transcript, 3/6/69. GET: 73:19 (1119). 223/2. 

Apollo 9 PAO Mission Commentary Transcript, 3/6/69. GET: 73:19 (1119). 223/4.