00:00A single, powerful radio signal from deep space once offered a tantalizing mystery.
00:06This 72-second blast was an exceptionally narrow-band signal,
00:11a characteristic rarely seen in natural cosmic emissions.
00:14Natural events like exploding stars send out super-wide radio waves.
00:19Only advanced tech can focus energy into such a tiny, precise beam.
00:24It means something out there could be sending us a message, on purpose.
00:28The real story behind this unexplained signal is even crazier.
00:32Link in bio.
