Blog > Image - Arecibo Message

The Arecibo Message is a 73 (rows) x 23 (columns) = 1,679 bits long transmission; broadcast in 1974 from the Arecibo radio telescope in Puerto Rico to a cluster of stars 25,000 light years away from Earth.

Image by Arne Nordmann under the Attribution-ShareAlike 3.0 Unported (CC BY-SA 3.0) license.