The chances are there's life out there, but any messages could be thousands of years old and indecipherable. Aliens are probably common. Because there are billions of trillions of stars in the cosmos, many astronomers think it would be highly improbable for Earth to be the only rock to harbour life. Whether ET is intelligent is still hotly debated. But no one doubts that the receipt of a signal from another civilisation would be Earth-shattering. "It would surely be the greatest discovery of all time, eclipsing the findings of Newton, Dawin and Einstein combined," says Prof Paul Davies, a British cosmologist from the Australian Centre for Astrobiology at Macquarie University."The knowledge that we are not alone would affect people's psyche, and totally transform our world view," he said during a visit to Britain last week. "The mere fact alone would be disruptive. But imagine if we got some serious information from ET. Then all bets are off about what our future would be."Prof Davies is among the handful of scientists charged with thinking through the implications of what to do in the event of "first contact" with an alien, sitting on one of a clutch of committees led by Dr Seth Shostak of the Seti (Search for Extraterrestrial Intelligence) Institute in California.The hunt for ET's transmissions has proceeded in fits and starts since 1959, when Cornell University physicists suggested that extraterrestrial civilisations would find it easier to reach out across the galaxy with radio waves than pay a visit. Today, perhaps the best known is being conducted by the Arecibo radio telescope in Puerto Rico.
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What a load of hogswallop! As if an intelligent species would rely on radio signals! And anyone with any intelligence already knows that we are not alone. We have been visited by hundreds of different species of star traveling humanoids just in the period 1947 to 1969, as described in detail in The Humanoids. And this is data that satisfies the criterion of scientific proof. That is to say, there is enough detail to rule out secret military aircraft, Venus, Swamp Gas or whatever other ridiculous possibilities have been proposed by skeptics.
I think the real question is whether there is any intelligent life here on Earth.
On the planet Earth Insects like Bee's communicate with chemicals and a complicated dance to show where flowers or food is. The Dolphins and Whales use sound like a sonar. Bats all so use sound for hunting and some communication. Sharks can tell if a fish is dying by sensing the Bio Electric signals of it's body. 
Until then we should work on talking to one another. IMO.
