Scientists identify planet with more water than Earth

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 Scientists identify planet with more water than Earth


The space that surrounds us is practically unknown. Scientific advances are gradually answering some of the many questions we have, but they also raise new unknowns. Recently, something unexpected has been discovered: an exoplanet, with characteristics similar to the sun, which contains a large amount of water. 

Scientists identify planet with more water than Earth



This study has been published in the journal Nature Astronomy. From the astronomical satellite CHEOPS (CHaracterising ExOPlanet Satellite) for exoplanet hunting, belonging to the European Space Agency (ESA), an exoplanet has been located of which the researchers assure that there is no "known equivalent". While observing two planets orbiting a star, they suddenly identified a third, making that star the first to have several transiting exoplanets. 

The star around which they were orbiting has been labeled Nu2 Lupi and is located 50 light-years from Earth in the constellation Lupus. Once the researchers identified these three planets, they named them "b", "c" and "d". After their detailed study, it is known that "b" is a rocky planet, while "c" and "d" have much more water than what we have on planet Earth. However, this water is not in a liquid state, but in the form of high-pressure ice or high-temperature steam. For this reason, the European Space Agency has classified them as non-habitable planets. 

The most interesting planet is "d", which, as David Ehrenreich (University of Geneva in Switzerland) explains: "Combined with its bright parent star, a long orbital period and suitability for follow-up characterization, this makes planet 'd' enormously exciting: it is an exceptional object with no known equivalent, and will surely be a golden target for future studies."

Given the progress that has been made with this research, further in-depth studies of such planetary transits could yield information regarding a planet's orbit, atmosphere, size, and even composition. As specified by one of the co-authors of the work, the researcher Enric Pallé, "these exciting results demonstrate once again the enormous potential of this satellite. CHEOPS will allow us not only to better understand known exoplanets, as shown in this and other initial results of the mission, but also to discover new exoplanets and reveal their secrets".


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