Astronomers are pulling back the curtain on two of the universe’s biggest mysteries: how planets are born and how invisible ...

World history is an important topic for Americans to learn. Even though students learn a lot of world history facts in school, there are a lot of simple world history facts that most people don’t ...

Can you name the first U.S. astronaut to orbit the earth? Or which ancient queen married two of her brothers? How about this one: Do you know the artist who painted the ceiling of the Sistine Chapel?