Science ❯ Space Exploration ❯ James Webb Space Telescope ❯ Observational Astronomy

Infrared Spectroscopy

JWST Finds Phosphine on Ancient Brown Dwarf, Matching Model Predictions

The measurement at roughly 100 parts per billion confirms abiotic formation in hydrogen-rich atmospheres.

Webb Telescope Rules Out Atmosphere on Earth-Sized Exoplanet TRAPPIST-1 d