Sept 15, 2021: The habitable zone of exo-planetary life revolves around Sun-like stars, which are more numerous and observable than Earth-like planets. Scientists claim that they will discover signs of life outside the solar system in two to three years.

According to a foreign news agency, scientists say that they have now reached the world of Hycean beyond the solar system, which may have traces of life that can be detected within two to three years.

The search for signs of life beyond Earth has remained the strongest pillar of astronomy supporting its evolution over decades. Researchers have now arrived at Hycean worlds, beyond our solar system which could have signs of exo-planetary life that could be detected within two to three years.

Astronomers from the University of Cambridge are suggesting that a “mini-Neptune,” which has twice the radius of Earth and is eight times as big could be habitable. Identified as the Hycean world, researchers have found a new class of ex0-planetary life that is covered in oceans with water-rich interiors underlying hydrogen-rich atmospheres.

The study published in the Astrophysical journal states that the terrestrial biomarkers that may be expected to be present in Hycean atmospheres would be readily detectable using modest observing time with the James Webb Space Telescope.

Astronomers at the University of Cambridge have suggested that a planet twice the size of Earth, called Mini Nicheon, could be habitable.

According to the report, there are planets in the space system called Hycean which have oceans and also have hydrogen in their inner parts which is an important source for human life.

According to the report, Hycean is a system far from our solar system where the world’s most suitable planets exist. They have rocky outcrops and vast fields. Scientists hope that these planets are capable of human habitation. These planets revolve around large stars like the Sun to get energy.

Hycean worlds are classified by exoplanets beyond the solar system which have densities between those of rocky super-Earths and more extended mini-Neptunes. “Hycean planets can be optimal candidates in the search for exo-planetary habitability and may be abundant in the exoplanet population,” researchers said in the paper.

The habitable zone of these exoplanets revolves around Sun-like stars, which are more numerous and observable than Earth-like planets. Astronomers have now identified a sizable sample of nearby potential Hycean planets that can be ideal targets for observations in search of exo-planetary biosignatures.

Earlier, astronomers detected exoplanets with masses between those of Earth and Neptune and orbits lasting 11.6, 27.6 and 107.6 days around the star. While the star was dubbed as A, researchers found planet B to be mainly rocky, while planets C and D appear to contain large amounts of water.

Exoplanets are large bodies beyond our solar system that orbit other stars. According to NASA, most of the exo-planetary life discovered so far are in a relatively small region of our Milky Way galaxy and are made up of elements similar to those of the planets in our solar system, but their mixes of those elements may differ.

The first exo-planetary life was discovered in the 1990s and since then, thousands of other such bodies have been seen spread across the universe.

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