Photo of the Day

January 30, 2020

Float On

A rare jellyfish floats in Hamelin Pool Marine Nature Reserve, Australia.
Photograph by David Doubilet, 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