New research suggests a comet explosion helped cause ice age extinctions, sudden cooling, and the loss of early human cultures.

About 40 people celebrating at a ski resort bar were killed, and 115 were injured, many of them young, the authorities said.

A CNN team witnessed several explosions on Saturday night in Caracas, and reported that some areas of the city were without electricity. Follow for live updates.

Researchers at the University of North Carolina at Chapel Hill have contributed to new insights into the most long-lived cosmic explosion ever recorded. The event was a gamma-ray burst that remained ...