.On Nov 16, 1974, people sent their initial notification to the stars in a try to speak to e.t.s. They did this using what was actually then the most extensive radio telescope in the world, positioned at the Arecibo Observatory in Puerto Rico. A team of scientists led through Frank Drake and also Carl Sagan sent their information to the M13 galaxy.
The notification was recorded binary code and also had relevant information concerning human DNA. It likewise consisted of numbers of a human, the solar system and also the Arecibo telescope. The tip was actually that if any type of aliens were to acquire the indicator as well as identify just how to decode it, they would know where it originated from.
Since M13 is 25,000 light-years away, it will certainly take 25,000 years for any type of M13 aliens to hear our information– if they are actually flatten there. The Arecibo information is a single of several notifications intended for space beings. We have likewise consisted of information on several spacecraft, like Trailblazer as well as Voyager.