The interstellar comet 3I/ATLAS, currently near Jupiter, has been observed emitting methane, a greenhouse gas that is 80 times more potent than carbon dioxide in terms of atmospheric warming. This emission was detected as the comet approached the Sun, causing its surface ices to sublimate and release gas. A study published in The Astrophysical Journal Letters highlights that the comet's warming revealed its internal composition, offering new insights into its origins after a billion-year journey through the galaxy. Researchers utilized the James Webb Space Telescope to analyze mid-infrared emissions, which allowed them to study the comet's chemical makeup. Unlike previous interstellar visitors, 3I/ATLAS is notably brighter, facilitating easier observation. As it continues on its trajectory, the comet's methane emissions are increasing, suggesting the shedding of its ancient outer layers. Further observations are planned for spring 2024 to continue studying its dust composition and chemical properties.