08 August 2014, 10:18 AM ET
There are fewer days with tornadoes compared to 60 years ago, but the risk of deadly tornado clusters is rising.
08 August 2014, 05:48 AM ET
As tropical cyclone Iselle menaced Hawaii on Thursday night local time, the storm also showed signs of slowing and weakening.
07 August 2014, 04:20 PM ET
The National Geographic Traveler magazine announced the winning photos for its 2014 photography contest.
07 August 2014, 03:45 PM ET
Thanks to this year's El Niño conditions in the Pacific Ocean, Hurricane Genevieve was reborn as it trundled west, exploding to super typhoon strength in just two days.
07 August 2014, 02:00 PM ET
Pitch Lake, the world's largest asphalt lake, in Trinidad and Tobago holds tiny life that's hidden inside water droplets encapsulated by oil. The finding boosts promise of finding alien life in hydrocarbon lakes on Saturn's largest moon Titan.
07 August 2014, 12:40 PM ET
National Geographic Traveler magazine announced the winners of this year's photography contest.
07 August 2014, 12:23 PM ET
The chances of an El Niño forming by winter have dropped to 65 percent, still double the normal odds.
07 August 2014, 08:01 AM ET
It's not every day that scientists identify a new mammal — especially one that can grow to be more than 8 feet (2.4 meters) long. But researchers recently named a new species of cetacean: the Australian humpback dolphin, Sousa sahulensis.
06 August 2014, 04:43 PM ET
An algae bloom that turned Toledo's water supply toxic is seen in Lake Erie in new satellite imagery. A ban on drinking the city's water was lifted Monday (August 4).
06 August 2014, 04:02 PM ET
Wildfires raging over northern California have created huge pyrocumulus clouds.
06 August 2014, 01:01 PM ET
An international team of scientists has announced a breakthrough in understanding how toxic mercury disperses in the ocean.
06 August 2014, 08:15 AM ET
In 2012, filmmaker James Cameron made a dangerous dive to the deepest pit in the ocean. But with the release of a new movie about his journey, perhaps Cameron's most challenging quest yet is getting the public interested in ocean exploration.
06 August 2014, 08:13 AM ET
Director and explorer James Cameron became the first person to complete a solo sub dive to the deepest point in the ocean, Challenger Deep. Cameron documented his record-setting voyage in a new film, "Deepsea Challenge 3D."
05 August 2014, 01:23 PM ET
Scientists recently found a new hotspot for juvenile whale sharks in the Red Sea that could offer clues about their life history.
05 August 2014, 09:09 AM ET
A new technology that harnesses the power of ocean currents could provide a clean and limitless form of renewable energy, some scientists say.
05 August 2014, 01:26 AM ET
From a British fart machine to early Earth's face-lift, here are the most interesting stories we found in Science this week.
04 August 2014, 07:07 PM ET
A large salt lake once surrounded the cone of an extinct volcano in Iran. Today, the lake is a fraction of its former self, and Iran's government is taking action to save it.
04 August 2014, 04:20 PM ET
Two hurricanes threaten the United States this week. One is expected to completely miss the U.S. Atlantic Coast, however, while the other will weaken as it heads toward Hawaii.
04 August 2014, 03:06 PM ET
New images from NASA's Earth Observatory reveal the turquoise melt ponds in the Arctic that form every summer.
04 August 2014, 03:00 PM ET
Huge wildfires sparked by a powerful El Niño event 16 years ago left a distinct tinge of sulfur in Antarctica's snow.
04 August 2014, 10:37 AM ET
A devastating magnitude-6.1 earthquake struck southwestern China's Yunnan province yesterday (Aug. 3), killing hundreds of people, according to news reports.
03 August 2014, 09:29 AM ET
To save bonobos, science must first get into the minds of those responsible for determining the animals' fate.
01 August 2014, 08:47 AM ET
Journey across the province of Palawan, which pokes out to the West of the Philippine Islands like a long finger squashed between the South China Sea and Sulu Sea.
01 August 2014, 07:56 AM ET
Ants may be some of Earth's most powerful biological climate brokers, a provocative new study claims.
31 July 2014, 05:39 PM ET
Scientists are still assessing the damage to coral communities from the catastrophic 2010 Deepwater Horizon oil in the Gulf of Mexico.
31 July 2014, 05:23 PM ET
Advocates for indigenous tribes are increasingly worried about a group of people near the Brazil-Peru border who may be facing violent attacks from illegal loggers and drug traffickers exploiting the densely forested region.
31 July 2014, 04:31 PM ET
The extent of damage from the 2010 Deepwater Horizon oil spill may be greater than scientists previously thought. A study of coral communities in the region found evidence of damage more than 13 miles (21 kilometers) away from the spill site.
31 July 2014, 03:16 PM ET
The U.S. Geological Survey plans to map the continental shelf off the East Coast using acoustics, but some environmentalists say marine mammals might be at risk.
31 July 2014, 02:32 PM ET
Arctic sea ice extent won't reach a record low this year, but it is still declining and could place in the top
31 July 2014, 02:30 PM ET
Record-high waves hit the Beaufort Sea, north of Alaska, in September 2012, when Arctic sea ice shrank to an extreme summer low.
31 July 2014, 11:16 AM ET
Wildfires burn in Canada's Northwest Territories, plaguing residents with smoke and isolating cities. This fire season has been extreme in the Northwest Territory.
31 July 2014, 11:08 AM ET
A recent map of fine atmospheric particles called aerosols reveals how fires and dust can inject particles high into the atmosphere.