Updated: 3 min 56 sec ago
Monarch butterflies are quickly disappearing, and the loss of essential milkweed is a major culprit.
A family takes a summer road trip in the 1950s to follow the Lewis and Clark Trail using original journal records.
The need to transmit power over long distances is increasing demand for submarine power cables, but the industry still faces hurdles.
Researchers discover area of genome linked to growth differs between pygmies and their taller neighbors.
Central Africa has lost 64 percent of its elephants in a decade, while 75 percent of all African elephant populations are in decline.
More than 46 million Americans—including 12 million children—now rely on local food aid to get by, according to a new study that sheds light on the scope of America's hunger problem.
Two hundred years ago today British troops seized control of Washington, D.C., and set the White House on fire.
Your house can tell others whether you're happy or well organized or friendly—even what your politics are.
Already known for detecting land mines, the giant African rodents may be able to sniff out tuberculosis, the world's second most fatal infectious disease.
Drillers have more work than they can handle, as water tables fall and experts warn of long-term consequences.
To accommodate today's oceangoing behemoths, the canal is getting a $6 billion makeover.
Explorer Sylvia Earle shares her personal journey in new documentary film 'Mission Blue' and explains why the ocean is essential to life on Earth.
The Perseids compete with a supermoon, a Swedish forest goes up in smoke, and the Rosetta spacecraft orbits a comet.
National Geographic Explorer-in-Residence Enric Sala leads a project that aims to identify and protect the world's most unspoiled marine environments.
In the dust collector of a NASA probe, citizen scientists helped find particles that probably came from interstellar space—the first that could be studied on Earth.
Summer floods have transformed roadways into raging rivers in the northeastern U.S.
Decomposing trees and homes may be responsible for the sand dune hole that swallowed a boy in June 2013.
Catch a glimpse of wildfires from a rare perspective, as firefighters open a window into their world.
Plans to build a gondola to the floor of the Grand Canyon reveal tensions between park protection and public access, as well as competing ideas of sacred space.
Stress on schools, social services is making city of Manassas a battleground once again.