Cosmos & Space
How Scientists Read the Air of Distant Worlds: A Guide to Exoplanet Spectroscopy
Scientists analyze exoplanet atmospheres by studying how starlight filters through them during a transit, using spectroscopy to identify molecules based on specific absorption patterns. This technique allows astronomers to detect gases like water vapor and methane light-years away, revealing the composition of distant worlds.
David Grossman·November 8, 2026
