Wow! A potential alien signal 1977.

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Presentation transcript:

Wow! A potential alien signal 1977

Big Ear Ohio State University Radio Telescope, transit instrument (Design similar to Nancay Radio Telescope)

Location on Sky Sweeps across any given part of the sky in 72 sec

21 cm Hydrogen line

What does the signal mean?

Many follow-ups, including: Oak Ridge Observatory, 1987, 1989 12m NRAO West Bank, 1995 VLA, 1995, 1996 Mt. Pleasant Radio Obsy, 1999

Conclusion No clue! Could be Probably not… Alien Military Noise (low chance but not impossible) Probably not… Accidental human (21cm banned) Natural astronomical (narrow band) 2012 Aricebo beamed 10,000 Tweets to that direction of sky