I was browsing a set of photos from the ISS, with the crew celebrating Christmas, and decided to post a link on my Facebook page.

Which preposition is it better to use in this caption to the picture:

Christmas celebrations at (in) the International Space Station?

Or maybe it's on the ISS?

enter image description here

(from Gordonua.com)

  • 4
    I prefer on to in or at. Of the three, at would be my last choice.
    – J.R.
    Dec 26 '15 at 18:34
  • 4
    I also prefer on, because it's what we usually use for a large vessel like a ship or a space station.
    – stangdon
    Dec 26 '15 at 18:43

I would suggest "aboard", or "on", or "in", in that order, as being most fitting. With "at", it's clear what you mean, but it's not the most correct choice.

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