Exoplanet with Two Tails: James Webb Observes Unique Phenomenon for the First Time.

Discovery of the James Webb Space Telescope

According to ТСН: The atmosphere of a hot Jupiter has stretched almost halfway around its orbit - the James Webb Space Telescope has observed for the first time an exoplanet with a double gas tail. Observations have shown that the overheated atmosphere is essentially leaking into space in two directions.

The subject of observation was the ultra-hot Jupiter WASP-121b, also known as Tilos. This gas giant is located approximately 858 light-years from Earth and has a mass that is 1.18 times greater than that of Jupiter. The planet orbits its star in less than 30 hours, leading to the heating of Tilos' atmosphere to several thousand kelvins. This, in turn, causes a rapid loss of light elements, primarily helium.

Previously, scientists could only speculate about the existence of an atmospheric tail, basing their conclusions on limited data. This time, an international team that conducted nearly 37 hours of continuous monitoring of the planet confirmed their assumptions. The James Webb was tracking Tilos throughout its entire orbital cycle - before, during, and after crossing in front of the star's disk.

The collected data showed that the helium atmosphere extends far beyond the planet's gravitational field. One of the gas tails stretches behind Tilos, formed under the influence of stellar wind and powerful radiation that literally blows atmospheric particles away. The other tail is directed forward along the orbit, likely due to the complex interaction of stellar gravity and gas flows. Overall, these structures reach distances approximately one hundred times the diameter of the planet itself.

Scientists note that current theoretical models cannot fully explain the formation of such a double structure. New observations confirm that the loss of atmosphere in ultra-hot Jupiters is a significantly more complex process than previously thought. This discovery will help better understand the evolution of gas giants and learn whether they can significantly lose their atmosphere over time - potentially turning into more compact worlds.

Thanks to years of observations by the Hubble Space Telescope, astronomers have been able to unravel one of the most intriguing mysteries in exoplanet research in recent decades.

The discovery made by the James Webb Telescope not only expands our understanding of exoplanets but also raises new questions about their evolution and atmospheric loss. It indicates that in the world of space exploration, there is always room for new discoveries and mysteries waiting for their researchers.