This is not really a "discovery" so much as a reaffirmation of what was previously known. The original paper is more insightful [1]. The Quanta magazine article

This is not really a "discovery" so much as a reaffirmation of what was previously known. The original paper is more insightful [1]. The Quanta magazine article is interesting but the title overstates the original citation. [1] https://journals.ametsoc.org/jas/article/77/7/2519/347483/An-Array-of-Ringing-Global-Free-Modes-Discovered https://journals.ametsoc.org/jas/article/77/7/2519/347483/An...