In 1974, a signal to space was sent and response was received and silenced in 2001
In 1974 a group of scientists sent a signal to space containing the location of the Earth in the solar system, our DNA structure and other relevant details. Well, in 2001, we received an enigmatic response that has gone unnoticed by the general public.
In an effort to discover intelligent extraterrestrial life, Carl Sagan sent a signal to space,a transmission known as the ‘Arecibo’ message via radio waves. The message addressed to extraterrestrial intelligent beings was the most powerful radio transmission ever transmitted to space by humanity. In comparison, the signal to space was a million times stronger than a typical television broadcast. Aimed at a group of stars located more than 25,000 light-years away, the pictorial message was sent with the hope that one day we would receive a similar response from another civilization.
The radio signal included the location of our planet Earth within our star system, the basic principles of mathematics and science, and the type of antenna that was used to relay the signal to space, all the characteristics that an intelligent alien civilization should understand . The message prepared by Carl Sagan and his colleagues also included information about our species, our music, even our physical appearance was included in the radio message, as well as in our DNA codes.