Updated: 13 min 17 sec ago
On U.S. Labor Day, we honor the people who labor daily to make their lives—and ours—better.
Photographers captured volcanoes rumbling to life around the world, from Papua New Guinea to Ecuador.
As many as three million people have fled the country, and millions more have been internally displaced within Syria.
Mars sports a weird crater, a young star gleams in its own reflection, and a new island continues a fiery growth spurt.
Unsung heroes of the seas—how pirates, slaves, and motley crews shaped the modern world.
Stirring renewed debate, a respected conservationist argues that government corruption makes a legal ivory trade unworkable.
An eagle and its rescuers fight for its survival after the raptor is found dying by the side of the road.
Arctic's first human arrivals kept to themselves for thousands of years.
Mercury in the environment affects birds' brains and alters the songs that they sing.
This newest listing under the Endangered Species Act brings the total number of coral species protected under the act to 22.
Since age 10, Maritza Morales Casanova has been at the forefront of Mexico's conservation and education efforts.
In a physics first, quantum entanglement of two-colored laser beams created pictures of otherwise unseeable objects, experimenters report.
Christian groups in northern Iraq are newly determined to defend their ancient homeland.
Climate and ocean changes blamed for huge losses of puffins, kittiwakes, and terns.
Efforts to stop the illegal killing of African elephants should focus on ivory transshipment ports and personnel.
The last section of dam is being blasted from the Elwha River on Washington's Olympic Peninsula on Tuesday.
The world's existing power plants are locking in more than 300 billion tons of future emissions that aren't being accounted for, a new study says.
U.S. data centers throw away billions of dollars in electricity every year because of inefficiencies in how they are run, according to a new report.
As apex predators, ospreys get a mega-dose of contaminants—and help identify health threats.
Although Sunday's Napa shake-up was one of California's biggest in recent memory, the state has a history of far bigger geological rumblings.