Subscribe Now! National Geographic Magazine $15
Home
Animals
Daily News
Environment
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

Helix Nebula
Photo: Eyeball-shaped Helix Nebula
WALLPAPER
The familiar eyeball shape of the Helix Nebula shows only two dimensions of this complex celestial body. But new observations suggest it may actually be composed of two gaseous disks nearly perpendicular to each other.
Photograph courtesy NASA/ESA/C. R. O'Dell (Vanderbilt University)

Related Photo Galleries
Photo: Light echo from a red supergiant

Photo Gallery: Stars

Photo: Black-and-white view of the Small Magellanic Cloud

Photo Gallery: Origins of the Universe

Photo: White dwarf star spirals

Photo Gallery: White Dwarfs

Photo: A pair of glowing, merging galaxies

Photo Gallery: Galaxies

Photo: Colorful rendering of the Cygnus Loop supernova

Photo Gallery: Supernovae

Photo: View of galaxy cluster with black hole at center

Photo Gallery: Black Holes

Space Topics

SPECIAL ADVERTISING SECTION
Photo: Hot spring in Ethiopia's Danakil Depression

Pathways to a Greener World

Join the climate conversation.
2008 Grand Prize Winner

Photo Gallery

See who won this year’s grand prize trip to the Grand Canyon!

Support Conservation
Photo: Two penguins

Help conserve the world's natural resources.

Learn More

The Green Guide
Photo: Green flower

Get tips for helping the environment.

Visit The Green Guide