Every spring, the twinkling lights from thousands of fireflies illuminate the forests of Elkmont, Tennessee, located in the Great Smoky Mountains National Park. Together, the fireflies glow in a ...

The best wildflower hiking trails in the U.S. Spring is in bloom. Here are our favorite places to frolic through fields of flowers, from the Pacific Northwest to the Appalachian Mountains.

How to photograph the stars. From basic techniques to the kit you need, plus where to go to capture the best pictures, here’s how to get started in astrophotography.

In his new National Geographic series, Limitless With Chris Hemsworth, the actor completes a test of the body’s reactions to fear: He climbed up a hundred-foot-long rope suspended from a cable ...

When humpbacks get stuck in fishing gear, their friends stick around to help. Are whales altruistic? A new scientific paper and a video present a compelling case the answer is “yes.” ...

For more than a century, Anglo-Irish explorer Ernest Henry Shackleton's 144-foot long ship "Endurance" was lost off the coast of Antarctica beneath the icy Weddell Sea.

Grab your binoculars, set up your telescope, and get outside—here’s what to look for in the cosmos throughout the month. Moon, Mars, and the Beehive Cluster—May 3 Just after sunset, look to ...

National Geographic revisits Jane Goodall’s iconic 1963 article about the chimpanzees of Gombe Stream Game Reserve.

(See more of Ballesta’s work to document this surreal phenomenon in National Geographic ’s story.) The competition, which is in its 57th year, awards 19 categories of wildlife photography ...

Episode 2: The alien underground. Half a mile below the surface of the earth, in a cave too hot to explore without an ice-packed suit, NASA scientist and Nat Geo explorer Penny Boston clambers ...

By founding the first African American scuba club, Albert José Jones led the way for Black divers to explore the ocean—and their own history.

Where, exactly, is the edge of space? It depends on who you ask. With more countries and commercial companies heading into the stratosphere, the debate about how to define outer space is heating up.