Friday, September 08, 2006

Life Beyond Earth ???

Since many years, we are haunted with a question that, whether there is a life outside this planet?

Some Scientists think that it is there, and some thiiknk it is not. We are trying hard to get answere to this question but still we are nowhere near to it.The recent discovery of numerous planets around stars other than the Sun confirms that our solar system is not unique. Indeed, these "extrasolar planets" appear to be common in our neighborhood in galaxy. Some of them are giant made up of gases like saturn and jupiter, so no life can be there, but some of them are like mars and earth.

These are the asrea of interest for scientists. They may have some living creatures.Over the next 15 years, scientists is embarking on a bold series of missions to find and characterize new worlds. These will be the most sensitive instruments ever built, capable of reaching beyond the bounds of our own solar system.

There will be instruments that will combine the light of the world's largest optical telescopes, extending our vision to new distances.Using new techniques, these will study dust clouds around stars where planets may be forming. It may also provide the first direct images of giant planets outside our solar system. Within the next decade,scientists are planning to measure the distances and positions of stars with quite good accuracy. It will give information about planets just slightly larger than Earth.

With an imaging power 100 times greater than the Hubble Space Telescope, it will send back the first photographs of nearby planetary systems.We will analyze the atmospheres of these distant worlds. The substantial presence of all neccessary gasses would suggest that life is present.Such a discovery would at last provide convincing evidence that we are not alone.

We will have found another Earth.



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