ET, is that you? Scientists eye messaging alien worlds 20 light years away



Scientists launch plan to beam welcome messages to far-off star systems – and their planets which could bear life

Scientists are making plans to beam messages from Earth out into the universe, effectively cold-calling the solar system to find signs of other life.

Astronomers will transmit signals from radio telescopes to hundreds of other star systems in the hope of making groundbreaking discoveries, according to the SETI (Search for Extraterrestrial Intelligence) Institute in California.

Systems within a 20-light year radius of the planet will receive the message if the project is green lit.

“There could be many civilizations out there but if they are all listening and no one is broadcasting then nothing will happen,” said David Black, an astrophysicist and Seti’s chief executive told the Sunday Times.

Drafting such a message would be quite a task and scientists have not yet decided how to go about it just yet. The idea is to transmit regular messages via the radio telescopes.

‘One question is… if we go ahead, what message should we send? Should it be the work of a few scientists or should we involve the whole world, perhaps through the internet?’

The message would have to be detailed enough to provide information about the human race. One idea is to send the entire Wikipedia database.

See also: Mysterious signal from the center of the Perseus Cluster

‘For half a century SETI has been searching for something that we ourselves do not produce: deliberate transmissions towards distant worlds,’ added Douglas A. Vakoch.

The new initiative is scheduled to be discussed at the annual meeting of the American Association of Advancing Science next week.

Despite widespread support for the project, some prominent scientists, including Stephen Hawking, have criticized the idea of inviting alien life to Earth.

Leading scientists have warned against inviting contact with other life species including Stephen Hawking

The physicist is famously convinced of life beyond planet Earth, but has spoken of the dangers of extraterrestrial beings in the past.

‘If aliens do visit us, the outcome would be much as when Columbus landed in America, which didn’t turn out well for the Native Americans,’ he said in a 2010 documentary.

In 2011, NASA’s Planetary Science Division released a report titled: ‘Would Contact with Extraterrestrials Benefit or Harm Humanity? A Scenario Analysis,’ where they listed several outcomes of what would happen if Earth was indeed discovered by aliens. The three possible scenarios examined were beneficial, neutral, or harmful.

See also: Aliens Might Call These Eight Earth-Like Planets Home

The harmful scenario warned that if aliens ever do ever come to our planet, humans are at risk of simply being crushed, or they might contract new diseases, or face the risk of being enslaved or eaten.

In the report, researchers urged caution when sending out signals about Earth into space, especially those indicating environmental damage to Earth and human biological make-up.

SETI has been trying to detect signs of extra-terrestrial live by monitoring “electromagnetic signals that are indicative of intelligent life” for over thirty years. The institute’s roots go back to 1959 with the Cocconi and Morrison’s publication in Nature titled ‘Searching for Interstellar Communications.’

“For half a century SETI has been searching for something that we ourselves do not produce: Deliberate transmissions towards distant worlds,” director of Interstellar Message Composition at the SETI Institute, Douglas Vakoch, said.

Back in 1974, the Arecibo Radio Telescope was employed to send out the largest beam in human history into space from Puerto Rico. The message consisted of a simple image and was aimed at the globular star cluster M13, which is 21,000 light years away.


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