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Webb finds lava planet with reflective atmosphere defying theory

Webb observations reveal TOI-561 b maintains thick atmosphere despite extreme conditions

1 Oct 26 · 13d ago · 1 article · 1 source · development 1 of 2

An international research team using the James Webb Space Telescope observed the exoplanet TOI-561 b over 37 hours across nearly four complete orbits. The observations indicate the planet maintains a substantial atmosphere and reflects approximately 75% of starlight reaching it—a reflectivity comparable to Venus and far higher than expected for a dark rocky planet in extreme radiation.

Webb observations reveal TOI-561 b maintains thick atmosphere despite extreme conditions
sciencedaily.com

“Our discovery challenges current theories. We would expect a heavily irradiated rocky planet like TOI-561 b to have lost its atmosphere billions of years ago.”

Dr. Anjali Piette

Dr. Anjali Piette Lead researcher, University of BirminghamJames Webb Space Telescope team International research collaboration

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2Silicate clouds and molten ocean explain…
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