.On Nov 16, 1974, humans sent their very first message to the stars in a try to speak to extraterrestrials. They performed this using what was then the biggest radio telescope on earth, located at the Arecibo Observatory in Puerto Rico. A group of experts led by Frank Drake and Carl Sagan sent their information to the M13 galaxy.
The message was recorded binary code as well as consisted of info regarding human DNA. It also consisted of figures of a human, the solar system and the Arecibo telescope. The suggestion was actually that if any sort of invaders were actually to obtain the indicator as well as figure out how to decode it, they would certainly understand where it arised from.
Given that M13 is 25,000 light-years away, it will take 25,000 years for any type of M13 aliens to hear our message– if they are flatten there certainly. The Arecibo message is actually just one of several notifications intended for extraterrestrials. We have likewise featured notifications on many space probe, including Pioneer and also Voyager.