Astrophysics & Particle Physics-APPC 2026

Exoplanet atmospheric spectroscopy is an important instrument in contemporary astrophysics for investigating the composition, structure, and dynamics of exoplanetary atmospheres. By measuring how the atmosphere of a planet absorbs, emits, or scatters starlight, astronomers are able to determine chemical signatures, temperature structures, and cloud properties, which can inform us about planetary formation, evolution, and habitability.Exoplanet spectroscopy has been used on a range of planetary types, from hot Jupiters to warm Neptunes and super-Earths.

Space-based observations by telescopes such as the Hubble Space Telescope (HST) and the James Webb Space Telescope (JWST) and ground-based observatories permit high-accuracy measurements that can identify faint spectral signatures in exoplanet atmospheres.Future space missions, such as the Ariel Space Telescope, will be used to make large-scale surveys of exoplanet atmospheres to broaden our knowledge of the range of planetary systems.On the whole, exoplanet atmospheric spectroscopy is a revolutionary method that enables astronomers to analyze the physical and chemical conditions of other worlds. Through the examination of exoplanetary atmospheres, researchers investigate planetary diversity, determine habitability, and reveal the intricate processes that form planetary systems outside of our solar system.