04 November 2014, 07:01 PM ET
Scientists reveal they can monitor "uncontacted tribes" in the Amazon rainforest using satellites, which would allow safe, inexpensive and noninvasive tracking of these tribes in order to protect them from outside threats.
04 November 2014, 02:37 PM ET
There's still time to hit the peak for colorful fall leaves, and a new foliage forecast map can help people plan their viewing trips more than a week ahead.
04 November 2014, 06:54 AM ET
Two huge blobs of dense rock jammed deep beneath Chile's coastline acted like seismic speed bumps during the magnitude-8.8 Maule earthquake in 2010, according to a new study.
03 November 2014, 05:32 PM ET
The wreck of a 17th-century Dutch warship has been discovered off the coast of Tobago. Marine archaeologists believe the vessel is possibly Huis de Kreuningen, which was lost during a bloody fight between Dutch and French colonists.
03 November 2014, 11:50 AM ET
A rare mineral known from just three massive meteorite impacts has now turned up in a Wisconsin crater.
31 October 2014, 02:26 PM ET
A wayward gray wolf has been spotted several times this month around the North Rim of Grand Canyon National Park. It could be the first of its species to roam Arizona in 70 years.
31 October 2014, 01:55 PM ET
The Earth will never catch up to the moon (let's hope), but the number of Ordovician craters may soon takeoff. That's because it's easier and cheaper than ever to sniff out the shocked minerals that confirm an impact.
31 October 2014, 01:16 PM ET
Just in time for Halloween, a spooky set of thunderstorms passed over the Eastern Pacific Ocean today.
30 October 2014, 04:39 PM ET
The most catastrophic volcanic eruption in the last 2 million years may owe its superpower to stacks of hot molten rock layered like jelly filling inside a sky-high wedding cake.
30 October 2014, 02:08 PM ET
A deadly new fungal disease that originated in Asia is killing salamanders and newts in Europe and could soon land on U.S. shores, home to the most diverse population of salamanders worldwide.
30 October 2014, 11:59 AM ET
The biggest underwater sculpture ever built was placed under the waters off Nassau in the Bahamas.
30 October 2014, 10:05 AM ET
Hurricane Gonzalo hit Bermuda earlier this month, stirring up miles of calcium carbonate sediment that forms the foundation of the island.
30 October 2014, 07:43 AM ET
Huge stone circles discovered by air in the Middle East have been imaged with high resolution, revealing their age and other intriguing details. Here's a look at the "Big Circles," which have puzzled scientists for decades.
29 October 2014, 06:04 PM ET
The hunt for Amelia Earhart's lost plane will continue next summer. A team will investigate an underwater "anomaly" detected off the coast of the tiny Pacific atoll Nikumaroro. The group thinks it could be the wreckage of Earhart's aircraft.
29 October 2014, 04:50 PM ET
Weeks of grim waiting ended yesterday (Oct. 28) for two homeowners in Hawaii's Pahoa village, as they became the first to lose their yards and fences to the relentless river of lava from Kilauea volcano.
29 October 2014, 02:22 PM ET
The frankenstorm has spurred an unprecedented amount of research to tackle the questions about the role climate change may have played in worsening the storm, how global warming might affect similar storms, and why Sandy caused so much damage.
28 October 2014, 09:58 PM ET
Properties, sources and uses of the element chlorine.
28 October 2014, 03:09 PM ET
Mammoth bones more than 70,000 years old emerged from the eroded river banks of a reservoir in Idaho this month. Paleontologists and students raced to rescue part of the beast's skull and a tusk, but they suspect more lies below the surface.
28 October 2014, 02:58 PM ET
A mammoth skeleton was discovered this month on the banks of a reservoir in Idaho. Paleontologists have rescued part of its skull and a tusk, but there could be a lot more buried below the surface.
28 October 2014, 11:29 AM ET
China is taking initial steps to control emissions from ports and shipping — an important new flank in that nation's war on pollution.
28 October 2014, 09:55 AM ET
A significant chunk of the missing oil from 2010's Deepwater Horizon oil spill has been discovered sitting on the seafloor at the bottom of the Gulf of Mexico.
28 October 2014, 01:27 AM ET
Reef historian Iain McCalman, in Sydney, and reef scientist Stephen Palumbi, in California, are monitoring reef degradation from opposite sides of the planet. They compared notes.
27 October 2014, 12:49 PM ET
Hawaii's Kilauea volcano has been erupting for more than 30 years. A new stream of lava started flowing on June 27, 2014. By the fall, the molten rock was pushing close to homes and buildings in the town of Pahoa on Hawaii's Big Island.
27 October 2014, 11:45 AM ET
An oozing lava flow from Hawaii's Kilauea volcano picked up speed over the weekend as it crept toward Pahoa, prompting local authorities and residents to prepare for possible evacuations on the Big Island.
27 October 2014, 06:17 AM ET
The aurora borealis can make for a spectacular night sky show, even sometimes visible from space. Here are eight amazing facts about the northern lights.
26 October 2014, 06:40 PM ET
Most people will have heard of plate tectonics: moving pieces on the surface of the planet that collide, pull away or slide past one another over millions of years to shape our world, but new information points to a more complex process.
25 October 2014, 01:26 AM ET
While scientists gather the ground truth about climate, it's up to lawmakers to do something responsible with it.
24 October 2014, 05:14 PM ET
Telltale signs of life have been discovered in rocks that were once 12 miles (20 kilometers) below the surface — some of the deepest chemical evidence for life ever found.
24 October 2014, 07:44 AM ET
Neanderthals disappeared from Europe starting 40,000 years ago, after the region's biggest volcanic blast in the last 200,000 years sent superheated pyroclastic flows of volcanic gas and ash sky-high. But don't blame the volcano, scientists say.
23 October 2014, 03:34 PM ET
When snow and ice thawed during the Antarctic summer last year, a lost notebook was revealed near the century-old base camp that British explorer Captain Robert Falcon Scott established at Cape Evans.
23 October 2014, 12:56 PM ET
Hidden in ice for more than 100 years, the photography notebook of a British explorer on Robert Falcon Scott's ill-fated expedition to Antarctica has been found.
23 October 2014, 09:40 AM ET
Stark images reveal one of the oldest organisms on Earth, the Great Basin Bristlecone Pine, dotting the Rocky Mountains. The dead gnarly wood of these ancient sentinels creates unique and beautiful landscapes across rugged mountaintops.