00:00A powerful signal came from deep space.
00:02It lasted just 72 seconds, then vanished forever.
00:07But what scientists discovered afterward made it even more disturbing.
00:12It matched the kind of signal they hoped could come from intelligent life.
00:18It was detected by the Big Ear radio telescope,
00:22built to listen for signals from space,
00:25waiting for something artificial, something unknown.
00:30Days later, astronomer Jerry Amon reviewed the data.
00:34One line stood out, a sudden spike, far stronger than the noise around it.
00:40The signal appeared as a strange sequence, 6EQUJ5.
00:45Amon circled it in red pen and wrote one word beside it,
00:49Wow.
00:50The mystery deepened.
00:52The signal seemed to come from Sagittarius, a distant region of stars,
00:57far from any obvious human source.
01:00Then scientists noticed something stranger.
01:03The signal was close to the hydrogen line,
01:06a frequency some believed intelligent life might use.
01:10Scientists searched the same region again, for hours, then years.
01:15But the signal never returned.
01:18That made the case even stranger.
01:21Big Ear had two listening beams.
01:23A steady signal should appear twice.
01:26But the wow signal appeared only once.
01:29Some believed it came from Earth, a satellite, an aircraft, or interference.
01:35But nothing matched perfectly.
01:37Scientists investigated everything.
01:39Radio interference.
01:40Natural space phenomena.
01:43Even another civilization.
01:45But every answer collapsed.
01:47Some call it coincidence.
01:49Others believe.
01:51For 72 seconds, humanity may have heard something beyond Earth.
01:56More than 40 years later, the wow signal remains unsolved.
02:01Because something powerful reached Earth from deep space,
02:05matched what scientists hoped to find,
02:08and was never heard again.
Comments