A 2014 satellite image captured a rare glimpse of a massive, eerily circular ring of clouds that formed slap-bang in the ...

(When a massive power outage struck southern California in the 1990s, Los Angeles residents reportedly called 911 to express alarm about strange clouds hovering overhead; they were seeing the ...

The heavy rain ... what we call lightning. There are lots of different kinds of lightning. The most common is sheet lightningwhich flows between clouds and lights up the whole sky.

Indonesia’s Mount Ibu volcano erupted on Saturday, spewing thick grey ash clouds into the sky ... shooting ash 4km up into the sky as streaks of purple lightning flashed around its crater ...