"Metallic Clouds Transform Exoplanet into Universe's Shiniest Mirror"

Astronomers have discovered an ultra-hot exoplanet, LTT9779 b, located 264 light-years from Earth, which reflects around 80% of the light from its parent star, making it the most reflective planet outside the solar system. The planet is covered by clouds of metal, acting like a cosmic mirror. LTT9779 b is almost five times the size of Earth, making it the largest cosmic mirror ever discovered. Its high reflectivity and the presence of metal clouds challenge previous theories about planet formation. The exoplanet is an example of a missing planet type, an ultra-hot Neptune, which has eluded astronomers for decades. Further study of LTT9779 b will provide insights into its atmosphere and other characteristics.