Are There Other Planets Like Earth In The Universe?

Since the pre-historic age human beings is thinking and searching whether he is alone in the universe or there is any other living creature on any other planet billions miles away from earth. The floating American telescope Capler in the space is busy in searching for a any other world. According to experts life takes birth on a planet only when there is water and it is necessary for the existence of water that planet may not be too near or too far off from its star like our earth. In astronomical term such an area is called "habitable zone". If the planet is near the star the water will turn into steam and vanishes due to heat, if it is far then it changes into ice not liquid to flourish life. Other world is not imaginary but idealogically the chances of its existence are enough in the universe. The reason is that there are trillions of stars and are thousand time more planets in number in the universe. Experts say that in our milky way there is possibility of life in any planet out of 50 million planets.
Capler telescope searched 54 such planets by December 2011 that are in the habitable zone. Moreover, it discovered a earth like planet Capler 20-F, it is first planet that has shape and features like earth. Capler 20 F has temperatyre of 427 degrees Celsius and in this high heat water turns into vapours. It is revolving around a star Capler 20. This planet is a bit smaller than our star the sunand is 950 light years away from earth (one light year is equal to ten trillion km). This planet completes one round around its star in 20 days. while earth takers 365 days. However, experts think that discovery of the planet can be a mile stone for the search of the other world. The reason experts say that in the past Capler 20 F was quite away from its star so it is a possibility that water could have remained in liquid form and life could have existed in the past.
Though Capler telescope could not search any planet having life but the future generation will make its search faster. The reason is that sun is using its gases quickly and during next 2-3 billion years it will utilize all its gases and swell so much that it may take the earth in its grip. So before the disaster has to come mankind would have to leave earth.