“Europe’s oldest megastructure” found at the bottom of the Baltic
A Stone Age wall found at the bottom of the Baltic Sea "may be Europe's oldest megastructure". The structure stretches...
A Stone Age wall found at the bottom of the Baltic Sea "may be Europe's oldest megastructure". The structure stretches...
Astronomers have discovered a ring-shaped cosmic megastructure whose proportions challenge existing theories of the universe. The so-called Great Ring has...