I watched a really interesting video from FroKnowsPhoto. He interviewed an astronaut that does photography in space for both science and the sheer awe of it. The one part I chucked about is we all have read or asked questions about our equipment in the cold. SPOILER, STOP READING! Apparently they take the D5's out into space.
https://youtu.be/OwZjz02EBFs
https://youtu.be/OwZjz02EBFs