Arecibo Interstellar Message tee shirt vintage astronaut t shirt This shirt is Inspired by

This shirt is Inspired by the Apollo 13 insignia

one of the ships commanded by Captain James Cook during his third and final major voyage from 1776 to 1779

and science communicator in astronomy and other natural sciences

Considered one of the world's foremost destinations for wildlife-viewing

one giant leap for mankind” were broadcast live on TV and viewed by hundreds of millions of people

Arecibo Interstellar Message tee shirt vintage astronaut t shirt This shirt is Inspired byThe Arecibo Interstellar Message On Nov. 16, 1974, a radio signal was transmitted from the Arecibo Observatory to globular cluster M13, about 25. 000 light years distant, far from the plane of the Milky Way Galaxy. The signal contained 1. 679 bits of information. But 1. 679 = 73 x 23, the product of two prime numbers, suggesting that the bits be arranged in a 73 x23 array, which yields the image. The top row establishes a binary counting convention;