What's causing mysterious 'ice rings' to form in the world's deepest lake? - Livescience.com

[unable to retrieve full-text content]

What's causing mysterious 'ice rings' to form in the world's deepest lake?  Livescience.com
https://news.google.com/__i/rss/rd/articles/CBMiNmh0dHBzOi8vd3d3LmxpdmVzY2llbmNlLmNvbS9pY2UtcmluZ3MtbGFrZS1iYWlrYWwuaHRtbNIBOmh0dHBzOi8vd3d3LmxpdmVzY2llbmNlLmNvbS9hbXAvaWNlLXJpbmdzLWxha2UtYmFpa2FsLmh0bWw?oc=5

2020-02-05 12:00:00Z
CBMiNmh0dHBzOi8vd3d3LmxpdmVzY2llbmNlLmNvbS9pY2UtcmluZ3MtbGFrZS1iYWlrYWwuaHRtbNIBOmh0dHBzOi8vd3d3LmxpdmVzY2llbmNlLmNvbS9hbXAvaWNlLXJpbmdzLWxha2UtYmFpa2FsLmh0bWw