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MAN will make contact with intelligent aliens within two decades, leading astronomers claim
"We really believe that in the next 20 years or so, we are going to learn a great deal more about life beyond Earth and very likely we will have detected life and perhaps even intelligent life elsewhere in the galaxy, ''said the 76-year-old, who founded the Search for Extraterrestrial Intelligence project (SETI) in 1961.
And SETI senior astronomer Dr Seth Shostak, based in California, told the BBC: "There are 200 billion stars just in our galaxy and at least half of them probably have planets (orbiting them), so that's 100 billion planetary systems with, let's say, five planets in each system.
"That's 500 billion planets out there - and bear in mind there are 100 billion other galaxies.
"To think this (the Earth) is the only place where anything interesting is happening, you have got to be really audacious to take that point of view.''