Arecibo Interstellar Message tee shirt vintage astronaut t shirt and science communicator in astronomy

and science communicator in astronomy and other natural sciences

Its isolated terrain shelters a diversity of plant and animal species

"I have A dream that one day we will not be judged by what we think happens to us after we die

1988 on a four-day mission

science popularizer

Arecibo Interstellar Message tee shirt vintage astronaut t shirt and science communicator in astronomyThe 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;