10 July 2014, 02:00 PM ET
One of the world's deepest earthquakes was also a rare supersonic quake, upending ideas about where these unusual earthquakes strike.
10 July 2014, 12:47 PM ET
The bacteria in the oceans seem to tightly sync their metabolisms to the day-night cycle, which may allow them to survive in the nutrient-poor environment of the ocean, new research suggests.
10 July 2014, 10:48 AM ET
A new snapshot of U.S. methane emissions in 2004 found 40 percent higher methane levels from livestock than had been estimated by the Environmental Protection Agency.
09 July 2014, 05:25 PM ET
A Northern anchovy school was the largest group of anchovies ever seen offshore of La Jolla in the last 30 years.
09 July 2014, 03:11 PM ET
Two satellite images show how the Brazilian city of Sao Paulo has grown over two decades, with spreading suburbs and new ring roads.
09 July 2014, 12:48 PM ET
A new study blames the "long tail" for mass extinction of the amazing sea creatures called ammonites.
09 July 2014, 11:35 AM ET
Models show summers are going to keep warming as emissions continue. See what this will warming feel like.
08 July 2014, 02:45 PM ET
A new world-record UV index was measured in 2003 at Bolivia's Licancabur volcano.
08 July 2014, 12:01 PM ET
The huge swirling storm was captured from space by a NASA satellite on July 7, as it churned toward Okinawa.
08 July 2014, 11:29 AM ET
New data from the ESA's Swarm satellite array shows that Earth's magnetic field is weakening, but don't worry, doomsday is not in the forecast.
08 July 2014, 10:22 AM ET
Global cooling caused by some historic volcanic eruptions wasn't as extreme as climate scientists recently thought, according to newly revised ice core records from Antarctica.
08 July 2014, 09:24 AM ET
A "world-class" dinosaur track site discovered within Denali National Park shows herds of duck-billed dinosaurs once tramped through muddy rivers in family groups.
08 July 2014, 08:32 AM ET
Surges of gas-charged fluid may have explosively generated the earthquakes preceding a giant sinkhole in Louisiana, researchers say. The findings may help scientists understand how pressurized fluids trigger earthquakes.
07 July 2014, 04:23 PM ET
The berg winds of southern Africa are seen blowing plumes of dust off the Namibian coast in a new astronaut image. These hot, dry winds originate from inland mountains and blow dust toward the sea.
07 July 2014, 03:37 PM ET
Humans were building in the Amazon before the rainforest existed, according to a new study of the ancient ecology of northeastern Bolivia. Mysterious earthen ditches were made when the region was a savanna.
07 July 2014, 03:15 PM ET
Researchers have found a series of earthworks, including ringlike ditches, scattered throughout the Amazon rainforest of Boliva and Brazil were there before the forest emerged.
07 July 2014, 08:40 AM ET
An earthquake of preliminary magnitude 7.1 struck today along the Pacific coast of southern Mexico's state of Chiapas, according to the U.S. Geological Survey (USGS).
06 July 2014, 02:33 PM ET
Researchers have figured out a new way to predict which rivers are most at risk of dangerous flooding.
03 July 2014, 02:00 PM ET
Four fracking wastewater wells near Oklahoma City have caused hundreds of earthquakes since 2008, a new study finds.
03 July 2014, 01:03 PM ET
The NOAA GOES 13 satellite captured the storm from July 2-3, 2014. It has been declared a category-1 storm and its gaining strength. (video looped)
03 July 2014, 12:32 PM ET
On July 2nd, 2014, the International Space Station flew 260 miles above the storm, which is now a category 1 hurricane. At the time of the fly-over, it was about 100 miles east-northeast of Cape Canaveral, Florida.
03 July 2014, 12:27 PM ET
Indigenous people with no prior contact to the outside world have just emerged from the Amazon rainforest in Brazil and made contact with a group of settled Indians, after being spotted migrating to evade illegal loggers, advocates say.
03 July 2014, 12:17 PM ET
Arthur is now the first hurricane of the 2014 season. It is expected to hit North Carolina as a Category 2.
02 July 2014, 08:22 PM ET
A strange paradox occurs off the coast of Western Australia: Though the Leeuwin Current brings nutrient-poor water to the area, phytoplankton still thrive in the region.
02 July 2014, 07:49 PM ET
Tropical Storm Arthur appears menacing as it bears down on the coast of Florida, in this photo captured today (July 2) by astronauts aboard the International Space Station.
02 July 2014, 05:27 PM ET
July 2012 is no longer the hottest month ever recorded in the United States. Here's why.
01 July 2014, 01:34 PM ET
The first tropical storm of the Atlantic hurricane season has finally formed, and it's likely to dampen Fourth of July festivities for some East Coast residents this weekend.
01 July 2014, 01:00 PM ET
The Hanhowuz Reservoir of Turkmenistan stands out as a shock of turquoise in the desert, with irrigated agricultural fields making a checkerboard around it. But this water diversion project and others like it have caused major environmental problems.
01 July 2014, 08:11 AM ET
Intersex fish have been found in three Pennsylvania river basins, suggesting that the waters may be tainted with endocrine-disrupting chemicals from agricultural runoff and treated human waste, according to a new study.
30 June 2014, 05:19 PM ET
California's rainfall year ended today, and though the final totals aren't yet official, the parched state will likely end up with one of its lowest rainfall years since the 1920s.
30 June 2014, 05:10 PM ET
Where the Sahara Desert meets the sea, winds sculpt the arid landscape in a series of parallel lines. Human activity in the form of mining is visible in a new astronaut photograph of the west coast of Africa.
30 June 2014, 03:00 PM ET
The amount of plastic littering the surface of the oceans is much smaller than expected, raising the question of where all the plastic is going.