Saturday night, a fireball shot across the skies, visible in Spain and Portugal as a blue or green light to those on the ground, and seen by us because so many people had their phones out in a flash to record it. The European Space Agency (ESA) said the burning object was a piece of a comet that was traveling around 100, 000 miles an hour. During its most visible phase, the meteor was around 38 miles (60 kilometers) above the ground. It most likely burned out as it headed out over the Atlantic Ocean.
-via Laughing Squid