
Recent data from the James Webb Space Telescope (JWST) suggests that a planet orbiting a small, red star 35 light years away may have a thick, sulfurous atmosphere, fueled by constant volcanic eruptions. Other astronomers say it’s too soon to tell.
The data, and the debate, shed light on how difficult it still is to make sense of the atmospheres of distant exoplanets. Banerjee and colleagues published their work in The Astrophysical Journal Letters.