25,000 hellos from Earth to Gliese 581d

More than 25,000 messages have been transmitted into outer space in a bid to reach a distant planet that may hold life.
The messages, transmitted at about midday AEST from the Tidbinbilla Deep Space Communication Complex outside Canberra, have come from 195 countries including some from places such as the Vatican city, Antarctica and Kosovo.
Each message, a maximum of 160 characters long, was collated on a website called "Friends from Earth" and all 25,880 messages were beamed together in a giant twitter-like message that took two hours to send.
Their target is the nearest Earth-like planet outside our solar system, called Gliese 581d, which is 20.3 light years away.
Scientists believe that as Gliese 581d is four planets away from its own sun, also named Gliese 581, the conditions make it possible to contain life.
"Can I have your attention please, (we are about to) ... commence transmission to Gliese 581-delta with a very special hello from Earth," the male American voice said.
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