When you buy through links on our articles, Future and its syndication partners may earn a commission. Credit: Scharvik/Getty Images Most species of bacteria can be broadly divided into two groups, ...

MIKE MOSS SAYS: Frank, Most of the newer lightning display graphics used by on-air meteorologists discriminate between strikes having negative polarity (transferring negative charge to the surface) ...

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 ...

FOX 13 Meteorologist Dave Osterberg explains the difference between positive lightning strikes and negative lightning strikes. Blast at a Tennessee explosives plant leaves 18 missing and feared dead, ...