Residents frequently report seeing a line of lights moving across the night sky, often capturing photos and videos. These sightings spark the same question: What are these lights?Real-Life ...

No matter how many times you see them, the northern lights, or aurora borealis—and their Southern Hemisphere equivalent, the aurora australis—are an ethereal, breathtaking sight. Dancing ...

Just why, though, remains a bit of a mystery. Although many people are self-proclaimed light sleepers or heavy sleepers, researchers have found that little is actually known about why people react ...