29 August 2014, 02:03 PM ET
Unscrupulous tour operators in the Amazon basin might be leading travelers alarmingly close the territory of 'uncontacted' people, according to tribal rights groups.
28 August 2014, 11:39 PM ET
An eruption started around midnight local time (8 p.m. ET) north of Iceland's Bardarbunga volcano.
28 August 2014, 07:11 PM ET
The U.S. wind power industry is booming, but a new report suggests it could be about to collapse.
28 August 2014, 05:04 PM ET
A tenfold increase in protected coral species was announced Wednesday, with 20 new corals added to the threatened species list.
28 August 2014, 01:51 AM ET
When a mining-waste dam rated for 100 years fails in 17, the impact is far more than local.
28 August 2014, 12:59 AM ET
After 60 years, will technology and a lawsuit finally bring clear waters to Georgia's Altamaha river?
27 August 2014, 06:22 PM ET
Earthquakes are still rocking Iceland as lava pushes through a long underground fissure near the ice-covered Bardarbunga volcano. New fractures and sinkholes were seen in ice southeast of the volcano today.
27 August 2014, 02:00 PM ET
Scientists obsessed with Death Valley's sailing stones have solved the Racetrack Playa mystery.
27 August 2014, 01:18 PM ET
An unusual type of fish that can walk and breathe air develops quite differently when it is raised on land, rather than in water. The study holds clues to a pivotal moment in animal evolution, when the first creatures moved out of the water and onto land.
27 August 2014, 01:00 PM ET
Even though ferocious snowstorms will become more frequent this century, their intensity will stay the same.
27 August 2014, 11:19 AM ET
The Farmers' Almanac predicts another nasty winter, but one meteorologist says the freezing forecast might be blown out of proportion.
27 August 2014, 10:03 AM ET
Death Valley's Racetrack Playa has revealed its secrets. In this
video, the mysterious sailing stones of Racetrack Playa are finally caught on camera as they creep across the playa. Full Story: http://goo.gl/yZ5d1Z
27 August 2014, 09:35 AM ET
Images from space show the massive Hurricane Marie poised to swallow another tiny storm off the Pacific coast.
26 August 2014, 05:01 PM ET
The Rayonier Inc. has been discharging waste water into the river in Georgia. The Altahama Riverkeeper organization has filed suit to prove that the discharge is actually polluting the river.
26 August 2014, 03:40 PM ET
Astronauts were stumped by the appearance of strange spiky features streaking across the steppes of Siberia. Fortunately, Earthbound scientists have an explanation at the ready.
26 August 2014, 01:42 AM ET
Landslides don’t attract the same media attention as more familiar geological hazards such as earthquakes and volcanoes. And yet they can be just as disastrous.
26 August 2014, 01:26 AM ET
Improved climate models suggests melting in Antarctica will be worse this century than we had realized.
25 August 2014, 06:53 PM ET
NASA shared satellite photos of 10 U.S. national parks in honor of the National Park Service's 98th anniversary.
25 August 2014, 02:43 PM ET
On Aug. 24, 2014, a 6.0-magnitude earthquake hit the Bay area, near Napa, California. The quake caused more than 170 injuries, and damaged buildings and homes in the region.
25 August 2014, 02:06 PM ET
Every day, 6.6 million gallons of tar-sands mining waste head to huge ponds in Canada — and yet no one has a good handle on how well those ponds are contained.
25 August 2014, 01:44 PM ET
NASA's Earth Observatory released a photo of a giant supercell thunderstorm that formed over North Carolina in May.
25 August 2014, 01:34 PM ET
Buried under hundreds of feet of ice, Iceland's Bardarbunga volcano has been shaking for more than a week now, but an eruption has yet to occur.
25 August 2014, 01:05 PM ET
Human activity underground is permanently changing the Earth, and some geologists see it as more evidence the planet has entered a new epoch called the Anthropocene.
25 August 2014, 12:09 PM ET
A strong, magnitude-6 earthquake in Northern California occurred Sunday on the West Napa Fault. The shaker highlights how both high-tech instruments and old-fashioned groundwork remain important in identifying an earthquake's source.
25 August 2014, 08:58 AM ET
Will sequoias still be around as California's climate shifts under the influence of global warming?
24 August 2014, 02:19 PM ET
A major earthquake has struck Northern California's Bay Area, injuring dozens and causing widespread damage and power outages.
24 August 2014, 01:00 PM ET
Hundreds of methane gas plumes bubbling up from the seabed were spotted during an extensive seafloor survey along the U.S. Atlantic Coast.
23 August 2014, 01:25 PM ET
One week after an earthquake swarm first warned of approaching magma, a volcanic eruption has started near Iceland's Barðarbunga volcano.
22 August 2014, 06:00 PM ET
Years of forest management saved hundreds of Arizona homes from disaster this year.
22 August 2014, 04:53 PM ET
Map shows notable features and facts about Antarctica.
22 August 2014, 03:04 PM ET
Arctic sea ice is melting fast, having lost about 1 million square miles since the 1970s, but experts are still figuring out what factors, such as cloud cover, are speeding or slowing the ice's demise.
22 August 2014, 12:25 PM ET
As the ice-covered Barðarbunga volcano continues to rumble, Icelandic officials are scanning glaciers for signs of an eruption.