James Webb Telescope discovers rocky planet with atmosphere, but it's a fiery hell


James Webb Telescope discovers rocky planet with atmosphere, but it's a fiery hell

55 Cancri e is larger than Earth, smaller than Neptune.

Scientists have discovered a rocky planet with an atmosphere beyond our solar system, a major discovery in the search for habitable worlds. However, this newly found planet, 55 Cancri e, is too hot to support life as we know it.

Nicknamed “Janssen”, 55 Cancri e is a super-Earth, much larger than Earth but smaller than Neptune. It orbits its star incredibly close and completes one revolution every 18 hours. This proximity causes the planet to experience intense heat, with surface temperatures reaching 3,140 degrees Fahrenheit.

Researchers used the James Webb Space Telescope to detect the presence of a dense atmosphere around 55 Cancri e. The atmosphere is probably composed of carbon dioxide or carbon monoxide and may be replenished by gases escaping from the vast magma ocean on the planet's surface.

“The atmosphere is probably rich in carbon dioxide or carbon monoxide, but it may also contain other gases, such as water vapor and sulfur dioxide. Current observations cannot pinpoint the exact atmospheric composition,” said Renyu Hu, a planetary scientist at NASA's Jet Propulsion Laboratory. Are.” Lead author of the study published in Caltech Magazine Nature.

This discovery is important because it demonstrates the capabilities of the James Webb Telescope in studying the atmospheres of exoplanets. While 55 Cancri e itself is not hospitable, this research paves the way for the discovery of truly habitable worlds in the future.

“In fact, it is one of the best-known rocky exoplanets,” said study co-author Brice-Olivier Demory, an astrophysicist at the Center for Space and Habitability at the University of Bern in Switzerland, who uses the term for planets beyond our solar system. Said while doing. “There are probably better places in our galaxy for a vacation.”


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