Many people know that stars appear to twinkle because our atmosphere bends starlight as it travels to Earth. But stars also have an innate “twinkle” — caused by rippling waves of gas on their surfaces ...

The exotic chemistry of planetary and interstellar space produces a bouquet of unusual aromas — if only there were air in space in which to smell them. When you purchase through links on our site, we ...

Tiny, pressurized air bubbles, trapped in ice, are accelerating the decline of some of the world’s glaciers, scientists have recently discovered. In tidewater glaciers—large rivers of ice that pour ...