These cotton candy exoplanets hide behind a haze even the James Webb Space Telescope can’t penetrate These worlds are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by a mysterious smog. Astrobitica March 19, 2026 (Last updated: March 19, 2026) 1 minute read These worlds are among the least dense ever found, and all attempts to probe their atmospheres have been blocked by a mysterious smog. About the Author Astrobitica Administrator Visit Website View All Posts Post navigation Previous: ‘A great relief!’ Europe’s Proba-3 solar-eclipse satellite phones home after a month of silenceNext: The Crab Pulsar’s Puzzling Emissions Finally Explained.