National Weather Service meteorologists warned of temperatures cold enough to be fatal descending across most of the nation.

Test tubes labelled "Bird Flu" and a piece of paper in the colours of the French national flag are seen in this picture illustration, January 14, 2023. REUTERS/Dado Ruvic/Illustration/File Photo ...

Jacob Chalif is part of a U.S. National Science Foundation project collecting some of the world’s oldest ice — dating back as many as a million years or more — for a Dartmouth College study ...