First Truly Habitable Exo planet discovered -Gliese581G

Astronomers have discovered the first exoplanet which resembles earth and may support life. A team of exo planet hunter searching for a habitable exo planet at the university of california and the carnegie institution and supported by national science foundation has  recently announced the discovery of a planet,gliese 581g , which may be truly habitable orbiting in a sun like red dwarf star,gliese 581 discovered on july 25,2008.

The newly observed planet has got a mass of between 3.1 and 4.3 times that of earth,gravity found to be 1.7 times to earth.
The results obtained after 11 years of observations.coming to temperature which is neither cold nor hot ranging in between -31 and 12 using HIRES  spectrometer.
Gliese Planet is at a distance of 117.5 trillion miles, a period of 20 light years which is considered to be rather close in astronomy.

According to vogt,professor of astronomy and astrophysics at university of california said that the planet is tidally locked to star ,which means that one side always faces star,in daylight and other  facing away from star in persecutal darkness. One effect of this is to stabilize the planet's surface climate. The most habitable zone on the surface would be the are between shadow and light,known as terminator.

The scientists believe this could be a major step in exo planet discovery which may truly habitable for us.may be in future we could go on a holiday trip or make a colony there.