This video shows a massive iceberg with a natural tunnel and enclosed blue pool floating in the icy waters near Ilulissat Icefjord, Greenland. A small inflatable boat passes through the opening, ...

Recent advances in astronomical observations have found a significant number of extrasolar planets that can sustain surface water, and the search for extraterrestrial life on such planets is gaining ...

Stephanie Murr, a masters student at Unesco, contributed to the writing of this article. The 2022 report “The State of the World’s Mangroves” estimates that since 1996, 5,245 square kilometers of ...