F D Drake

Sagan envisioned the ingenious idea of affixing to the Voyager probes a small gold record containing information about this planet, for its potential recovery by an alien species. This book presents a discussion of the conceptionalization and carrying out of the effort to place this gold record on the two Voyager spacecraft sent outside the Solar System. This Voyager Interstellar Record contained digital information on the planet Earth, including photographs, sounds, music, and greetings in more than 40 languages. It was designed to tell an extraterrestrial intelligence who encountered it something about this planet and the life that thrives here, and to give that life form a general idea of where Earth was located in space.… (altro)