.On November 16, 1974, people sent their first message to the superstars in an attempt to call extraterrestrials. They did this using what was at that point the most extensive radio telescope around the world, positioned at the Arecibo Observatory in Puerto Rico. A group of researchers led through Frank Drake as well as Carl Sagan delivered their notification to the M13 galaxy.
The information was actually written in binary code and also consisted of information regarding individual DNA. It also consisted of numbers of a human, the planetary system and also the Arecibo telescope. The concept was actually that if any sort of aliens were actually to obtain the indicator as well as determine how to decode it, they will know where it stemmed from.
Considering that M13 is 25,000 light-years away, it will definitely take 25,000 years for any type of M13 invaders to hear our message– if they are even out certainly there. The Arecibo message is a single of a number of notifications planned for extraterrestrials. We have actually likewise consisted of notifications on a number of space capsule, including Leader and also Voyager.