This Is Why Sending Messages to Aliens Might Be a Good Idea - Astronaut
https://astronaut.com/sending-messages-aliens-might-good-idea/
Although there’s some fear surrounding the act of sending messages to hypothetical extraterrestrial intelligences,
it could be one of the most important things humanity could do — scientifically speaking.
Are we alone in the Universe? Humans have been asking that question for centuries, but only in the past few decades
have we achieved the ability to begin to try and find the answer.
With SETI — the Search for Extra Terrestrial Intelligence — we use radio telescopes to search for signals from alien
civilizations. This is a relatively passive system, where we sit back and listen for what signals might be out there.
As of yet, the search has come up empty handed.
By contrast, “Active SETI” or what is now called Messaging Extra Terrestrial Intelligence, or METI, is a proactive
system of sending a message to a specific place to say “hello” to let potential alien astronomers know we’re here.