The first-of-its-kind finding is a major advance in the search for exoplanets that might be habitable. The milestone, led by Collin Cherubim PhD ’26, David Charbonneau, and Robin Wordsworth, was published in Science in July.

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This artist conceptualization shows the exoplanet LHS 1140 b in the foreground surrounded by a helium-rich atmosphere. In the distance is its red dwarf star orbited by another rocky planet. Courtesy of Melissa Weiss/Center for Astrophysics

“People are generally interested in the big questions: Are we alone? Is there life beyond the Earth or beyond our solar system? To that end, this study reveals the first atmosphere discovered on a rocky, planet in the habitable zone of a star outside of our solar system,” said Cherubim, who conducted the research as part of his doctoral studies at the Harvard Kenneth C. Griffin Graduate School of Arts and Sciences.

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From left: Robin Wordsworth, Collin Cherubim PhD ’26, and David Charbonneau. Photo by Carlos Sanchez/Harvard Faculty of Arts and Sciences

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