We're all someone's Sun"Sometime in the near future, people will be able to point to a star and say, 'that star has a planet like Earth'," said Sara Seager, professor of planetary science and physics at MIT."Just imagine the moment, when we find potential signatures of life," concurred Matt Mountain, a top space telescope boffin. "Imagine the moment when the world wakes up and the human race realizes that its long loneliness in time and space may be over - the possibility we're no longer alone in the universe.""I think in the next 20 years we will find out we are not alone in the universe," added NASA astronomer Kevin Hand.