> Space won't work for the kind of physics the LHC does.

https://home.cern/science/engineering/cryogenics-low-tempera...

> The LHC's cryogenic system requires 40,000 leak-tight pipe seals, 40 MW of electricity – 10 times more than is needed to power a locomotive – and 120 tonnes of helium to keep the magnets at 1.9 K.

Launch cost per kg aside for the detectors and basic framework, space is the best place for pushing the boundaries of high energy physics experiments in the future.