Astronomers have revealed details of a planet outside the solar system, the first of its kind to be home to water, in a major breakthrough while searching for other viable worlds other than Earth.

Water vapor was discovered in the "super-Earth" about 110 light years away, which is estimated to be twice the size of the Earth and eight times its mass.

K2-18b also has a correct atmosphere and temperature range for the presence of organisms, according to scientists at the University of London.

The Earth is located closer to its star than the Earth relative to the sun, which means that it completes its orbit in 33 days and thus have shorter years, while our planet takes 365 days, according to the site "Daily Mail" British.

The super-Earth was first detected in 2015 by NASA's Kepler spacecraft, but data analysis revealed new details we've never seen before.

Current equipment allows the identification of basic factors such as distance, mass, and surface temperature.

K2-18b cannot be considered a viable second planet, because it is much larger than Earth and has a different atmospheric composition.

It also revolves around a completely different star, so it doesn't look like Earth.

Although the planet is in the habitable zone of its solar system, scientists say there is currently no way to determine if there are signs of life.