United Nations Secretary-General Antonio Guterres speaks during a press conference in Beirut, Lebanon, Saturday, Jan. 18, 2025.

A 69-million-year-old fossilized skull unearthed in Antarctica could rewrite the history of modern birds. The nearly complete skull belongs to Vegavis iaai, a prehistoric waterfowl species that lived ...

New 3D maps of the Greenland Ice Sheet show how huge cracks in the ice that accelerate melting expanded between 2016 and 2021 ...