Sniffing Out Sulfur: JWST Detects Chemical Clues in the Atmosphere of TOI-270 d

L. Felix and colleagues used JWST data to study the atmosphere of TOI-270 d, a sub-Neptune exoplanet. They found strong signs of methane, carbon dioxide, and possibly sulfur-based molecules like CS₂. Their high-resolution analysis suggests a clear, metal-rich atmosphere, but further observations are needed to confirm its chemical makeup.