08 September 2014, 02:30 PM ET
A infrared camera from the Nicarnica Aviation's NicAIR II was used to spot the toxic tornado on Sept. 3, 2014. It whirled volcanic gases and ash particles during an ongoing Holuhraun fissure eruption. Full Story: http://goo.gl/WTP8aH
08 September 2014, 01:07 PM ET
Species are dying off thousands of times faster than they are being created, according to new research that highlights the planet's looming biodiversity crisis. The study also suggests humans are on the verge of causing a sixth mass extinction on Earth.
07 September 2014, 09:16 AM ET
Two new lava-spouting fissures opened overnight in Iceland, and NASA’s Terra satellite spied the hotspots from space.
07 September 2014, 07:30 AM ET
Bacteria aren't just tenants inside Sweden's Tjuv-Ante's Cave. The microbes are building calcite dripstones on the ceiling.
05 September 2014, 06:36 PM ET
Forecasts have improved, but challenges remain.
05 September 2014, 03:46 PM ET
Slow-moving lava from Hawaii's Kilauea volcano is about a week away from the cluster of homes and farms in the Kaohe Homesteads neighborhood.
05 September 2014, 10:55 AM ET
The June 27th flow is on the move and is seen here advancing east on September 3rd, 2014. It was .8 miles from the Wao Kele o Puna forest reserve at that point. On September 5th, the USGS issued a warning for the Kaohe Homesteads subdivision in Puna.
04 September 2014, 06:54 PM ET
Satellites finally caught a view of Iceland's spectacular eruption from space.
04 September 2014, 05:36 PM ET
The dahlia is one of the most spectacular of blooming plants now found in gardens across the world. These herbaceous perennial plants belong to the genus Dahlia and are indigenous to the highlands of Central America and Mexico.
04 September 2014, 02:00 PM ET
A small but mighty ocean bacterium can load up on scarce resources when food supplies run low. Scientists can track these bacterial proteins in seawater to detect low nutrient levels.
04 September 2014, 10:40 AM ET
El Niño, which has been anticipated to form since March, has yet to arrive but is still expected.
04 September 2014, 07:35 AM ET
The war-torn country of Afghanistan is currently one of the poorest nations in the world. However, the country may be sitting on one of the richest treasure troves of minerals in the world, valued at nearly $1 trillion and maybe much more.
03 September 2014, 08:19 PM ET
In terms of America’s best ideas, wilderness ranks alongside National Parks.
03 September 2014, 05:20 PM ET
Iceland's fiery Holuhraun eruption may soon reach into a nearby glacier, triggering an explosive showdown between lava and ice.
03 September 2014, 02:54 PM ET
Lurking some 3.2 miles (5.1 kilometers) beneath the Pacific Ocean, a massive mountain rises up from the seafloor, say scientists who discovered the seamount using sonar technology.
03 September 2014, 12:36 PM ET
A seamount rises up from one of the least explored areas of the central Pacific Ocean. The structure was mapped with sonar, revealing a conical structure with 23-degree slopes.
03 September 2014, 09:59 AM ET
The 6.0-magnitude earthquake that rocked California's Napa Valley last month not only injured dozens of people and caused millions of dollars in damage, but it also warped the surface of Earth.
02 September 2014, 04:05 PM ET
The Southwest faces a dry and dusty forecast, with an 80 to 90 percent chance of a decade-long drought striking the region this century.
02 September 2014, 12:49 PM ET
An invasive species of camel cricket from Asia is now far more common in American basements than the native variety, a citizen science project found.
02 September 2014, 11:29 AM ET
The alert warning for the area surrounding Iceland's Bardarbunga volcano was kept at orange on Tuesday, indicating increased unrest with greater potential for an eruption. Smoke is spewing from the volcano, and lava is spouting nearby. (Sept. 2)
31 August 2014, 11:43 AM ET
A new volcanic eruption in southeast Iceland is fountaining lava nearly 200 feet (60 meters) into the air.
30 August 2014, 12:24 PM ET
On the one-hundredth anniversary of the last passenger pigeon's death, reflections on the loss of darkened skies.
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.