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We don't like their sound, and guitar music is on the way out. Decca Recording Co. rejecting the Beatles, 1962

7. THE WOW! SIGNAL Previous | Next

Has ET already been in touch?

IT was 37 seconds long and came from outer space. On 15 August 1977 it caused astronomer Jerry Ehman, then of Ohio State University in Columbus, to scrawl "Wow!" on the printout from Big Ear, Ohio State's radio telescope in Delaware. And 28 years later no one knows what created the signal. "I am still waiting for a definitive explanation that makes sense," Ehman says.

It came from the direction of Sagittarius; the nearest star in that direction is 220 light years away. If that really is where is came from, it would have had to be a pretty powerful astronomical event - or an advanced alien civilisation using an astonishingly large and powerful transmitter.

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Location:Glenville NY
Joined:21/09/2008
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#1 - Posted: 21/09/2008 17:52

I am very much enjoying the book so far.

I belive that I have found a typo though on page 103 in second paragrah the word "years" is used and it should be "centuries":

"Anyone in M31 who picks it up - which won't happen for about twenty-one thousand years - may well conclude there is intelligent life out here."

For those who don't know, M31 is the "Great Galaxy in Andromeda".  According to Astronomy.com, "The closest spiral galaxy to our own, Andromeda is 2.5 million light-years from Earth."

So, I would believe that the typo is corrected with "twenty-five centuries".  Please note that I wrote "centuries" and not "years" since 25000 centuries corresponds to 2.5 x 10^4 centuries * 10^2 years/century = 2.5 x 10^6 years.

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