https://www.newscientist.com/article/mg24032020-400-why-earths-water-could-be-older-than-earth-itself/

MILTON KEYNES has the dubious distinction of being the town that supposedly has the most roundabouts in the UK. It is not the sort of place you might expect to be at the centre of a profound debate about Earth’s deep history.

And yet, on its outskirts there is a lab housing a seemingly haphazard set of metal tubes, canisters, wires, cables and control boards, assembled into a piece of apparatus the size of a small car. My colleagues and I have used it to make the most precise measurements ever of rocks bearing traces of Earth’s earliest atmosphere. We believe that those measurements may put to bed a perplexing scientific mystery.