Exoplanet habitability therefore centers itself on evaluating planets other than those in the solar system that could support life. The habitability is defined through the range of parameters that include the distance of the planet from the star is, the size and composition of the planet, the atmospheric conditions, and the availability of water. The “habitable zone” is termed as the ‘Goldilocks zone’ is a arc around a star at which conditions may be sufficient for liquid water to exist on the surface of a planet.

Hi-tech advancement in telescope has led to discovery of thousands of exoplanets some of which orbit in the star’s habitable zone. These kinds of investigations entail searching for other indications for life in the Earth’s atmosphere, namely oxygen and methane.

No exoplanets have been discovered yet that would be able to support life but ongoing research is slowly helping us get closer to the answer.