3D map of an exoplanet's atmosphere may help find Earth-like worlds
 

Many exoplanets are completely uninhabitable, but they can still be useful in the search for more hospitable worlds. Scientists at Lund University have created a 3D map of ultra-hot gas giant WASP-189b's atmosphere that could provide insights into other distant planets' skies. The team used a high-resolution spectrograph to study the host star's light as it passed through the planet's atmosphere, looking for line positions in elements that not only indicated what materials were present, but that they swirled around in three-dimensional layers.

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