Exclusive Edition - The Ultimate Field Guide to Photography: Buy Now!
Home
Animals
Daily News
Green Guide
History
Kids
Maps
Music
Photography
Science & Space
Travel & Cultures
Video
National Geographic Magazine
National Geographic Channel
Magazines
Shop
Subscriptions
TV & Film
Travel With Us
Our Mission
Visit our Online Shops
Books & Atlases
Clothing & Accessories
DVDs
Maps
Catalog Quick Shop

Sign up for free

Newsletters

Once a month
get new photos
and expert tips.

Sign up

Mackerel Sky Sunset
Photo: Mackerel sky clouds at sunset
WALLPAPER
A "mackerel sky" adds to a striking sunset scene in Grimsby, Lincolnshire, England. Ripples of altocumulus or cirrocumulus clouds—resembling the markings of a king mackerel—give the phenomenon its name.
Photograph by John Leslie/Alamy

Related Photo Galleries
Photo: Midnight sun on Baffin Island, Canada

Photo Gallery: Climate

Photo: Waterfall and turquoise water on Baffin Island

Photo Gallery: Erosion and Weathering

Photo: Sunrise over Coastguard Beach

Photo Gallery: Coastlines

Earth Topics

SPECIAL ADVERTISING SECTION
Photo: Reflection on Yellowstone Lake, Yellowstone National Park

Photo Contest

Share your shots and you could win a trip to the Grand Canyon!
Photo: Puerto Escondido

Interactive Map

Visit Mexico with this interactive map.

Order Human Footprint on DVD Today
Image: Cover of Human Footprint DVD

Discover the extraordinary impact that an average human life has on the world.

Buy the DVD

Natural Disasters
Photo: A tornado

Get the science behind avalanches, tsunamis, and more.

Go Now

Support Conservation
Photo: Two penguins

Help conserve the world's natural resources.

Learn More