For years, people have reported seeing “dark watchers,” or misty, dark shadows that seem to follow them when they’re walking or running outside. Here’s why you might be able to see them ...

Dawnavyn James, an elementary school educator who specializes in Black history, reached a turning point in her teaching when a student asked, “Did people see in black and white a long time ago?” The ...

Timothy Ferris, in the film Seeing in the Dark The stars seem to change little if at all—night after night, century after century—so people used to assume that they lasted forever. The Greek ...