.On Nov 16, 1974, human beings delivered their initial notification to the stars in an attempt to call extraterrestrials. They performed this utilizing what was actually after that the most extensive broadcast telescope in the world, found at the Arecibo Observatory in Puerto Rico. A group of experts led by Frank Drake and also Carl Sagan delivered their notification to the M13 galaxy.
The message was written in binary code as well as included info regarding individual DNA. It additionally featured amounts of an individual, the solar system and the Arecibo telescope. The idea was that if any type of aliens were actually to obtain the signal as well as identify how to decode it, they will know where it came from.
Since M13 is 25,000 light-years away, it will certainly take 25,000 years for any M13 aliens to hear our notification– if they are even out there certainly. The Arecibo notification is actually only one of several notifications meant for space beings. We have actually likewise consisted of notifications on several space probe, such as Trailblazer and also Voyager.