Who’s Trustworthy? A Robot Can Help Teach Us

An unusual new study of college students’ interactions with a robot has shed light on why we intuitively trust some people and distrust others. While many people assume that behaviors like avoiding eye contact and fidgeting are signals that a person is being dishonest, scientists have found that no single gesture or expression consistently predicts trustworthiness.

Earth Has Just One Moon, Right? Think Again

Everybody knows that there’s just one moon orbiting the Earth. But a new study by a team of astronomers concludes that everybody is dead wrong about that. Minimoons, just a few feet across, make regular orbits around the planet. But they don’t stick around very long — they’re easily pulled away by the gravity of neighboring planets.