Photo of the Day

Picture of red and gold jellyfish with long tentacles swimming in blue water
June 6, 2022

Golden Jellies

A group of jellyfish known as Atlantic sea nettle swims at the Monterey Bay Aquarium in California. Jellyfish have been in existence for more than 500 million years.
Photograph by Sisse Brimberg, Nat Geo Image Collection

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