NASA telescope to look for other earths

NASA has successfully launched a rocket carrying a planet-hunting telescope. The powerful Kepler telescope will search for planets similar to the Earth. Scientists believe there are good chances of finding a planet like ours somewhere out there in the galaxy. There are billions and billions of stars in the heavens. If one planet is the right distance from one of these stars, then conditions might be right to support life. The planet’s atmosphere should neither be too hot nor too cold. The planet would also need water. The telescope is named after the German 17th-Century astronomer Johannes Kepler. It will spend more than three years looking for dark specks against the brightness of a hundred-thousand stars. These specks could be Earth-like planets.
The manager of the $600-million project Jim Fanson said: "We have a feeling like we're about to set sail across an ocean to discover a new world." NASA’s space science boss Ed Weiler agreed that the mission was a “historical” landmark in space exploration. However, he couldn’t say whether or not the telescope would find another Earth. “It very possibly could tell us that Earths are very, very common...or that Earths are really, really, really rare - perhaps we're the only Earth,” he said. He told reporters how important Kepler’s journey was, saying: "It really attacks some basic human questions that have been asked since that first man or woman looked up at the sky and asked, 'Are we alone?’”