11. Spectroscopy: Decoding Alien Atmospheres
Webb leverages the technique of spectroscopy to unveil the hidden makeup of exoplanet atmospheres. By analyzing the starlight that passes through an exoplanet’s gaseous shroud, Webb identifies specific molecules—each leaving a unique chemical signature. This process acts as a cosmic fingerprint, exposing secrets about planetary composition, temperature, and even weather patterns. With this level of precision, astronomers can decode the mysteries of distant worlds as never before. Discover more with NASA’s Spectroscopy 101.