How Do We Know What Air is Like on Other Planets?

The video explains how scientists study the atmospheres of planets, moons, and exoplanets by analyzing light that interacts with these atmospheres. By examining the light's absorption and emission fingerprints, scientists can identify the gases present and their relative abundances. This method allows for the study of distant exoplanets' atmospheres without direct observation. Despite challenges such as faint signals and complex atmospheres, astronomers use advanced telescopes and techniques to overcome these obstacles and gain insights into atmospheric compositions far beyond our solar system.

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