Webb finds reflective atmosphere on scorching lava world TOI-561 b

New James Webb Space Telescope observations confirm that TOI-561 b, a super-Earth that circles a sun-like star in about 10.5 hours, still has a significant atmosphere despite intense radiation. Watching it for 37 hours, astronomers found its nightside too cool to hold the missing heat, suggesting about three-quarters of starlight is reflected, likely by clouds of silicate minerals.