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Exoplanet Climate ‘Decoder’ aids Search for Life

Globe with different suns
In this artistic rendering, different kinds of suns are shown as they interact with various Earth-like surfaces in distant solar systems. The combinations create an array of climates. Thus, in the search for exoplanets, astronomers can be guided by color for possible habitable planets.

After examining a dozen types of suns and a roster of planet surfaces, Cornell University astronomers have developed a practical model — an environmental color “decoder” — to tease out climate clues for potentially habitable exoplanets in galaxies far away.

“We looked at how different planetary surfaces in the habitable zones of distant solar systems could affect the climate on exoplanets,” said Jack Madden, who works in the lab of Lisa Kaltenegger, associate professor of astronomy and director of Cor...

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