#VIDEO: Strange lights over the sky of Milan

#VIRAL: A UFO is sighted over the sky of New Jersey

#VIRAL: Terrifying 'hellish' clouds are captured in the sky over the U.S.

#VIRAL: Terrifying 'hellish' clouds are captured in the sky over the U.S.

VIDEO: Fire consumes part of a hotel in Las Vegas

Giant Staffie Towers Over Petite Thai Woman

Morning Glory Cloud Passes Over Brazilian Beachgoers

A loud bang was heard in Moscow, followed by a strange black smoke ring in the sky

Group of Skydivers Create Formation in Sky With Parachutes, Wingsuits & Smoke Cannisters

#OMG: Film an impressive mastodontic cloud in a sunset

A loud bang was heard in Moscow, followed by a strange black smoke ring in the sky.

#VIDEO: Fire Breaks Out At London Station

Volcano at the end of the world, yellow smoke cloud in Indiana and other events around the world

Wildfire Smoke Sparks Concern Over 4th of July Fireworks

#OMG: Mesmerizing time-lapse of a cloud formation over a glacier

"UFO" hovering in the sky over the city of Scotland