Captivating cloud passes over the Rock of Gibraltar

Beautiful purple clouds and sunrise in Long Island

Clouds push through mountains

Spectacular rainbow clouds form over city

Clouds cascade down mountainside

Skiers excited by dazzling aurora

Northern lights dance across the night sky

Rare, high-altitude clouds amaze stargazers

Time-lapse video captures aurora borealis dancing through Alaska sky

Northern lights dance in night sky over erupting volcano

Lightning makes clouds look like mountains in Texas

Dark skies, rain invade island

Beautiful nacreous clouds in Leicestershire, UK

Stunning New York view

Northern lights dazzle night sky in Alaska

Blue sky disappears in cloudy time-lapse video

Iridescent cloud appears in Netherlands

Pyrocumulonimbus cloud looms in Australian sky

Drone footage captures stunning picturesque sunrise in Mexico's Monterrey

Sky turns purple at Tennessee sunset

A majestic view of Washington mountains

Fire Rainbow over Massachusetts

Mesmerising footage as clouds fall from the mountains covering Barcelona in fog before drifting out to the Mediterranean at sunrise

Stunning mammatus clouds at sunset near Roswell, New Mexico

Lyrid meteor shower to peak on Earth Day

Dust clouds form from mountains after earthquake