Scientists launch plans to beam welcome messages into space to contact aliens.

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Scientists are planning to beam messages from earth to different regions in space in order to contact alienS. If this messages get response then this will definitely change the meaning of HUMAN. 

Systems within a 20-light year radius of the planet will receive the message if the project is green lit. astronomers will transmit this messages to hundreds of star systems via radio telescope's.

'There could be many civilisations 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.

'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?'
'For half a century SETI has been searching for something  we ourselves do not produce: deliberate transmissions towards distant worlds,' added Douglas A. Vakoch.
source -  Daily Mail

This proposal was put forward by scientists of SETI (Search for Extraterrestrial Intelligence) institute in California. 

Many scientists including Stephen Hawking thinks that inviting aliens could backfire. Stephen Hawking said in a 2010 documentary that '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,'. 

This is not the first time humans have beamed messages in space,in our history we have beamed this type of messages in cosmos many times including beatles song "across the universe" once. 

Do you know?

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Source of some info : here