Transcription: Zdenek Mukulášek Message to the Globular Cluster In 1974, we made our first attempt to contact extraterrestrial civilizations using radio signals. The 305 meter radio telescope at Arecibo in Puerto Rico was used to send a message to the globular cluster in Hercules. It was in digital form using a succession of ones and zeros, and if properly interpreted could have given detailed information about ourselves. But does the project have any chance of success? At first it might seem so. The globular cluster in Hercules contains about a million stars and the probability that our message could reach ...
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