X @The Economist
The Economistยท2025-08-27 05:40
A vast chamber has been gouged out of the Earth. More than half a kilometre underground in southern China is a 12-storey-high sphere made from steel and plexiglass https://t.co/krjZjYwyE4 ...
A vast chamber has been gouged out of the Earth. More than half a kilometre underground in southern China is a 12-storey-high sphere made from steel and plexiglass https://t.co/krjZjYwyE4 ...