Astronauts report feeling profoundly awestruck when they go to space, an anthropologist reports. This experience shapes their perspectives even back on Earth.

Each study adds a piece to the puzzle of scientific knowledge. But any one study on its own doesn’t tell you all that much.

Democracy cannot thrive, or even survive, when its leaders see themselves as godlike and divide citizens into believers and heretics, a scholar writes.

The children most often left out of autism research may finally have a treatment worth testing.