This is LIGO
https://en.m.wikipedia.org/wiki/LIGO
We basically built 200 mini LIGO’s connected them to huge fibre optic networks (1000’s of fibre legs on each site, with 10-1,000’s meters for each leg).
Put these data collection systems in major industrial facilities around the world. Physically moved the data from sites to supercomputer centre because it was way too voluminous for network, trained models on national cluster for weeks.
It was wild. Doubt anyone will ever be allowed to do that again.