What was recorded

A strong radio signal appeared in the Ohio State telescope’s observations. Jerry Ehman marked the printout with “Wow!” The sequence 6EQUJ5 encodes changing signal intensity; it is not a decoded message.

[1] SETI Institute

Why it remains open

The cited SETI account reports that the signal was not seen again. A single nonrepeating observation limits follow-up. An extraterrestrial source, a natural source and interference should not be treated as equally verified conclusions.

[1] SETI Institute

Chronology

1977-08-15

The signal was recorded by the Ohio State radio telescope.

Source record

Connected knowledge

seti

RELATED TO · The observation arose in a radio SETI observing program.

Established
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Source trail

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