There is beauty in the skill required to convey an idea concisely and with clarity.
On a final note, the Arecibo message is a one-time FM (frequency modulated) interstellar radio message that was sent in 1974 to commemorate the remodelling of the Arecibo Radio Telescope located in Puerto Rico. The message was “aimed” at the Hercules Globular Cluster – or more accurately M13 (Messier 13 or NGC 6205) – located 25,000 light years away from us.
When decoded, the message will look like this.
One light year is the distance it takes light to travel in a single year. Light travels at a speed of 299,792,458 metres per second or 300,000 kilometres per second.