NASA’s James Webb Space Telescope Observations
Scientists have recently reported their observation of a planet that could potentially have an ocean-covered surface. The discovery was made using NASA’s James Webb Space Telescope. The planet in question, referred to as “TOI-270 d,” is located approximately 73 light years away.
Conflicting Opinions on Surface Conditions
A team from the University of Cambridge has suggested that TOI-270 d might be covered by a deep-water ocean, based on the presence of water vapor and chemical signatures of carbon dioxide and methane. However, there is debate among researchers regarding the planet’s habitability. Nikku Madhusudhan, a professor of astrophysics at the University of Cambridge, expressed uncertainty, stating that while the ocean could potentially remain liquid due to high atmospheric pressure, it is unclear if the planet is habitable.
Canadian Researchers Dispute Findings
Contrary to the University of Cambridge team’s claims, a group of Canadian researchers has raised doubts about the potential habitability of TOI-270 d. Björn Benneke, a professor at the Université de Montréal, suggested that the planet’s surface temperatures could be too high for liquid water, with water potentially existing in a supercritical state.
Role of James Webb Space Telescope
The James Webb Space Telescope has been instrumental in advancing the search for habitable planets beyond Earth. By intercepting and analyzing infrared light, the telescope aids in studying exoplanet atmospheres to determine their potential to support life.
Search for Liquid Water and Habitable Zones
One crucial factor scientists consider in identifying habitable planets is the presence of liquid water. The “habitable zone” or “Goldilocks zone” around a star refers to the region where conditions are suitable for liquid water to exist, neither too hot nor too cold.