Given the choice, do ISS astronauts prefer to schedule EVA tasks on the “day light” side of the ISS, the “shadow" side of the ISS or in the shadow of Earth’s night side?

I suspect the intense, direct solar illumination of full sunlight would produce very deep shadows, while reflected Earthlight would produce very diffuse, even, (dare I say, “pleasant”?) lighting.

I would guess that harsh artificial lighting in Earth’s night time shadow would make tasks more challenging.

enter image description here Day light Gemini

enter image description here

Shadow side ISS

enter image description here Earth nightside

The same question of lighting is likely even more applicable to robotic operations.

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    $\begingroup$ The first photo is actually Ed White on Gemini 4 in 1965, the first U.S. spacewalk. You can even make out the capsule reflected in his visor if you zoom in. Of course that doesn't change the fact that it's a representation of a daylight EVA, I just wanted to point out the historical significance of the photo. $\endgroup$ Nov 15 at 0:38
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    $\begingroup$ @StevePemberton ... good catch ! $\endgroup$
    – Woody
    Nov 15 at 1:07
  • 1
    $\begingroup$ @StevePemberton ... edited to conform with your comment. $\endgroup$
    – Woody
    Nov 15 at 2:53


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