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Can you decrypt this alien message?

What is the scale of the devices they used to submit their message?

Suppose a telescope on Earth receives a series of pulses from a fixed, unresolved source beyond the solar system. The source is a star about 50 light years from Earth. The pulses are in the form of short/long signals and they are received in a very narrow band around an electromagnetic frequency of 452.12919 MHz. A computer algorithm identifies the artificial nature of the pulses. It turns out the pulses carry a message. The pulses signify binary digits. Suppose further that you were, by whatsoever reason, put in charge of decoding this message.

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Hereis the text file with the binary encoded message of theSETIDecryptChallenge.

If you successfully decrypted the message, you should be able to answer the following questions:

Send your solutions to Dr. Ren Heller via e-mail (

Since when have they been communicating interstellar?

, a list of the successful SETI crackers (in chronological order) will be released.

What is the typical body height of our interstellar counterparts?

Open discussion (social networks etc.) of possible solutions strongly encouraged.

This is a call for a fun scientific challenge byDr. Ren Heller.

Three hints to the solutions can be offered as per request.

). Human-readable format and the format of the message are allowed.

What kind of object do they live on?

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