Click the title above to open the Spectroscopy March regular issue, Volume 34, Issue 3, in an interactive PDF format.
New Telescope Technique Expands Exoplanet Atmosphere Spectroscopic Studies
March 24th 2025Astronomers have made a significant leap in the study of exoplanet atmospheres with a new ground-based spectroscopic technique that rivals space-based observations in precision. Using the Exoplanet Transmission Spectroscopy Imager (ETSI) at McDonald Observatory in Texas, researchers have analyzed 21 exoplanet atmospheres, demonstrating that ground-based telescopes can now provide cost-effective reconnaissance for future high-precision studies with facilities like the James Webb Space Telescope (JWST) (1-3).