Maine dad Chip Leighton built a huge following by posting questions like, “Do you need envelopes to send postcards?” ...

Crowds reach a critical point where individual movement is overtaken by a collective dynamic, causing the mass to adhere to Newton’s third law ...

We’ve all heard of seasonal affective disorder — the phenomenon that explains why so many people feel more depressed during ...

Project Sign, established by the U.S. Air Force in 1947, was the first military office tasked with analyzing reports on UFOs.

The image of the tiny flapping butterfly has come to stand for the outsized impact of small actions, or even the inherent ...