The Arecibo message was a series of binary digits transmitted towards the globular star cluster M13, with the hopes of communicating with intelligent extra-terrestrial life. The message contained information about human biology, our solar system, and our technology, among other things. The three-minute radio message broadcast a series of exactly 1,679 binary digits (a multiple of two prime numbers) the Arecibo telescope in an attempt to communcate our existence out to the universe.