"It's been such a puzzle that there was liquid water on Mars, because Mars is further from the sun, and also, the sun was ...

Low temperatures plummeted into the teens just seven days before temps teased the 70-degree mark. The big freeze coincided with moisture flowing up the Gulf Coast, bringing record amounts of snow to ...

Mark Travers writes about the world of psychology. A “hot-and-cold” relationship refers to a dynamic where one partner alternates between showing intense affection, warmth and interest during ...