Is there anybody out there?

Back in the early 70's physicist Carl Sagan helped promote and realisation of adding a message plaque to NASA's Pioneer spacecraft. He devised a graphic representing an understanding of molecular physics as well as our position in space, down to which planet in the Solar System we are on. Also on it are images of a man and woman.

I've added the outline of a Triumph to let the extraterrestrials know that we ride motorcycles too!