Photo of the Day

Picture of a scientist scuba diving among coral in the Red Sea
January 3, 2022

Sea Diving

Ichthyologist Eugenie Clark scuba dives in the Red Sea, looking for bioluminescent fish nicknamed "flashlight fish." Clark authored the November 1978 story this photo appeared in—one of a dozen articles she wrote to educate the public on underwater worlds.
Photograph by David Doubilet, Nat Geo Image Collection
Create a free account to continue and get unlimited access to hundreds of Nat Geo articles, plus newsletters.

Go Further

Subscriber Exclusive Content

See how NASA’s new Mars rover will explore the red planet

Why are people so dang obsessed with Mars?

How viruses shape our world

The era of greyhound racing in the U.S. is coming to an end

See how people have imagined life on Mars through history

Create your free account to continue reading

No credit card required. Unlimited access to free content.
Or get a Premium Subscription to access the best of Nat Geo - just $19