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The problem with only listening, however, is we’re expecting aliens to take the initiative supadance shoes clearance. Maybe they’re politely reserved, like Canadians. Or perhaps they’re just sitting around waiting for someone else to speak up first. “If everyone who can send a message decides only to receive messages, it will be a very quiet galaxy,” noted Fraknoi. And studying message transmission will aid our SETI effort, said Shostak. What are the chances that someone in the cosmos might hear us? Until recently, it seemed a far-fetched dream. But now the Kepler space telescope has detected 2,950 confirmed “exoplanets. ” While most are inhospitable places, a precious few orbit in prime real estate, not too close or far from their star..
We’d need to ping a very large number of star systems to find them. But if their residents are feeling chatty, that conversation would be one of the most exhilarating events in human history. A planet called Proxima b, circling our nearest star Proxima Centauri, is one example of the sort of place we plan to target. It’s not necessarily the first or most important target; to message that planet, it would be necessary have use a transmitter in the Southern Hemisphere. But Proxima b does have two key characteristics that make it an attractive: it’s nearby and it has a planet that some have suggested may be Earthlike and in the star’s habitable zone supadance shoes clearance.
To be sure, we’ve been publicizing our musings for years, through radio, TV and military radar. So smart aliens already know we’re here. And these signals aren’t particularly welcoming. “All those ‘I Love Lucy’ shows just say: ‘We like sitcoms in our world,’ ” said Vakoch. “They’re not saying ‘We want to make contact.’ ”. But there are several big challenges to the METI plan. These planets are very, very far away supadance shoes clearance. The closest, Promixa b, is 4.25 light years away — so any reply would take more than eight years to reach us. And it’s likelier that any intelligent civilization is hundreds or thousands of light years away..
So the wait time for a response could be longer than a human lifetime – or the lifetime of a NASA grant. Vakock calls it “an inherently multi-generational project.”. Another challenge: Perhaps our E.T supadance shoes clearance. friends will be momentarily distracted and miss our call. So we need to keep repeating a message, over time — a pattern, so it doesn’t get lost in the random noise of the galaxy. And the pattern should not replicate anything else in nature, so they know it’s us. Finally, our message can’t get lost in translation. We need a common “language,” like math and science, to converse. Scientists think that’s probably no big deal..
“If they have radio transmitters, they’re good engineers. And if you’re a good engineer, you’ve got to know that 2 + 2 = 4,” said Vakoch. “That’s true on Earth and it’s true on Proxima Centauri.”. So what do we want to say? Like a cocktail party, first impressions matter. To show off our love of math, pulsing out a simple number sequence — say, 1 through 10 — seems a good place to start. We could also tell them what we’re made of, by pulsing the atomic numbers of elements in the Periodic Table. We could message the Fibonacci sequence, revealing our world to be a place of elegantly patterned aesthetics supadance shoes clearance.