Breaking down the science of lightning.

Positive lightning makes up less than 5% of strikes, but it can be up to 10 times more powerful.

The crater of Mount Ruang flamed with lava against a backdrop of lightning bolts overnight after erupting five times - Copyright AFP/File Kena Betancur The crater of ...

Add Yahoo as a preferred source to see more of our stories on Google. Some lightning strikes are much more powerful than others and can often be the culprit behind some of Colorado's wildfires. Here's ...

An image of Augustine erupting on January 13, 2006, from about 50 miles away from the volcano. Courtesy of Gerald Andrew When Mount St. Augustine in Alaska erupted in mid-January 2006 for the first ...

. Witnesses report spheres ranging from a few centimeters to several meters across, often emitting a sulfur-like odor and occasionally causing serious damage. Unlike ordinary lightning, these orbs can ...

Across the country, pools close when lightning is in the area. For outdoor pools, the rationale is clear: About 10 to 15 people are killed by lightning in the United States each year, and the vast ...