Learn about Earth's biodiversity and natural resources. Plus: Explore national parks and state wilderness areas.
Satellites are cheap ways to keep an eye on people living in the rainforest, and does so without the risk of passing along diseases to the tribes.
The turbulence of the fall season swirls over a herd of bison in this iconic American landscape.
A new study by NASA scientist James Famiglietti quantifies how fast we're pumping water out of California's aquifers in response to the drought.
Researchers are identifying new craters by examining minerals, deformed rocks and structural characteristics that match other, confirmed meteorite craters.
The walls of these giant circles were too low to function as animal corrals, and scientists don't see why a corral would need such a precise shape.
An aluminum shard that may've come from a window patch on Earhart's aircraft has prompted the renewed interest in the lost pilot.
As waves roll into shore, the edges are often foamy -- sometimes so much so that foam blows off the water and down the beach. Here's why it happens.
Divers scoured remote Pacific atolls to collect the garbage, some of which had entangled sea turtles.
The bright blue contrasts beautifully with the red rocks over which the waters tumble. Here's how it gets that hue.
It sounds like a dangerous idea, but by thawing out ancient viruses scientists hope to learn more about their evolution.
In addition to the rapidly flowing lava, methane explosions have been observed as pockets of trapped gas from decomposing plants come in contact with the lava.
It's no secret that spending time in nature has immense health benefits. Learn more about shinrin-yoku, which means 'forest bathing' in Japanese.
For many residents of Los Angeles County, the new San Gabriel National Monument may be the only easily accessible open space even remotely close to home.
University of Michigan officials discover the complicated answer as they relocate a 250-year-old bur oak.
Ice and water and dissolved the book's binding, so researched made digital copies of the pages and then created a new binding for the diary.
Activist and author blogs about politics, energy and Earth's resources.
Science journalist blogs about humans and other wildlife.