As per a new study, Dyson spheres around faint stars in the galaxy could offer new techno-signatures clues.
Assuming intelligent aliens know how to harvest energy from stars, would humanity be able to spot these high-level structures?
The Why Files on MSN
Ancient ruins & alien bases beneath the sea floor
Beneath 70 % of Earth’s surface lies a realm where sonar picks up strange shapes, sunken cities and possibly alien structures.
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