The idiom "out of the blue," used to describe something unexpected, is derived from a potentially deadly weather phenomenon —a "bolt from the blue." According to the National Weather Service, a "bolt ...

Scientists have detected tiny lightning bolts on Mars for the first time — they were found discharging around NASA's Perseverance rover and coming from dust-storm fronts and whirling dust devils.

Though scientists have long understood how lightning strikes, the precise atmospheric events that trigger it within thunderclouds have remained a perplexing mystery. The mystery may now be solved, ...

Each year in the United States, lightning strikes an average of 300 people. A direct hit by a bolt of lightning kills about 50 people per year. Those who survive a lightning strike – with temperatures ...