Astronomers have just uncovered a giant cavity in our galaxy, and it was hiding in plain sight. Sitting between the Taurus and Perseus molecular clouds, this 500-light-year-wide bubble was long ...

The walls of dust, known as haboobs, came after intense thunderstorms in the area. A brief ground stop at Sky Harbor International Airport was lifted on Monday evening. By Yan Zhuang and Nazaneen ...

A powerful storm kicked up a towering wall of dust that rolled through metro Phoenix on Monday, darkening the sky, blinding drivers, knocking out power and grounding flights at one of the nation's ...

A towering dust cloud caused havoc in Arizona on Monday, grounding flights and leaving thousands without power. The slow-moving cloud — known as a haboob — hit parts of Phoenix and Arizona City, 60 ...

Parts of central Arizona were engulfed by a towering wall of dust on Monday evening — producing dramatic scenes that sent shockwaves far beyond the Grand Canyon state. " It was larger and it went ...

Some things we see in space appear to outpace light. Now we are learning to harness these bizarre optical illusions to ...