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Researchers have detected strange radio signals coming from deep space. These mysterious radio waves might just be bursts of cosmic energy from a distant neutron star. Or it could be that scientists have discovered a highly-advanced civilization 90 light-years away from Earth.

00:00 Scientists Discovered Traces of Type II Civilization
00:34 Kardashev Scale
01:18 Type I Civilization
02:12 Hostread
03:49 Dyson sphere
05:33 Type II civilization


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