1. Question: What is the largest planet in our solar system? Answer: Jupiter 2. Question: What is the fastest animal on land? Answer: The cheetah 3. Question: What are the three layers of the Earth?

years ago in a cave near Les Eyzies in the Dordogne, France. Credit: SEARCHING: Our Quest for Meaning in the Age of Science Dr. Alan Lightman has been around the block a few times. Over the past five ...

NPR's Ayesha Rascoe speaks with author Randall Munroe about his new book, "What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions." So question for you. If you unleashed a ...

Do American students have too much homework, or too little? We often hear passionate arguments for either side, but I believe that we ought to be asking a different question altogether. What should ...