Add Yahoo as a preferred source to see more of our stories on Google. Luke Durant was folding his laundry right into his suitcase ahead of a trip back home to Alabama when he decided to check his ...

May 30 (UPI) --A shard of smooth bone etched with irregular marks dating back 20,000 years puzzled archaeologists until they noticed something unique - the etchings, lines like tally marks, may have ...

What is common to 2, 53 and 199? All three are prime numbers. These numbers are divisible by 1 and themselves, no others. There is an infinite number of prime numbers, but checking if a number is ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. For many people ...