THE PAPERS IN BRIEF . ? NASA’s James Webb Space Telescope (JWST) was launched in December 2021 and now orbits the Sun, some 1.5 million kilometres from Earth. ? Early data released last year confirm that this is an ideal vantage point for investigating exoplanets — the distant worlds that orbit stars other than the Sun. ? Five papers in Nature report analyses profiling the atmospheric chemistry of WASP-39b, a hot exoplanet with a Saturn-like mass. ? The studies settle question...