Does NASA have files on aliens? Jared Isaacman says no, and tells Ross Douthat on “Interesting Times” that extraterrestrials would pick a more exciting locale to visit than America’s naval bases.

In 1952, 52 servicemen died in a plane crash in Alaska’s Chugach Mountains. The discovery of their bodies may have been aided ...

Although astronomers have found thousands of exoplanets, the number of confirmed exomoons—and exorings—is still zero. But ...

Celeste Kidd's research challenges long-standing ideas from Jean Piaget about children's problem-solving abilities. Her ...