Just when you think you have the internet all figured out, you stumble on something that takes you on a rollercoaster ride, ...

One night about 60 years ago, physicist Enrico Fermi looked up into the sky and asked, "Where is everybody?" He was talking about aliens. Today, scientists know that there are millions, perhaps ...

Human beings are a panicky species – quick to fear and slow to understand. Over much of our evolutionary history, this ingrained alarm served us well, keeping us alive in a wild world brimming with ...