Is Earth still in an ice age? While most people imagine ice ages as times of constant snow and glaciers, the truth is far more complex. Surprisingly, we are currently living in an ice age,more ...

"It could represent some of the oldest and most pristine water ever observed, formed in another planetary system and ...

The ice cores could offer clues about a period known as the Mid-Pleistocene Transition that has long puzzled scientists ...

Explore daily insights on the USA TODAY crossword puzzle by Sally Hoelscher. Uncover expert takes and answers in our ...