The Founding Fathers who gathered in Philadelphia to adopt the Declaration of Independence on July 4, 1776 picked a nice day ...

In two recent studies, researchers suggest a weakening ocean current system is to blame for a persistent cold spot in the ...

A new DNA model suggests humans didn't reach Australia until 50,000 years ago, but archaeological data disagrees.

Humans were present in North America 10,000 years earlier than previously thought, according to a new study. Researchers from ...

A new analysis of historical jet stream behavior reveals that increases in jet stream waviness accounted for 55-71% of winter ...