13 March 2015, 08:11 AM ET
American and European satellites captured images of a Chilean volcano before and after it blew up on March 3.
12 March 2015, 10:33 AM ET
Winter is when Arctic sea ice reaches its peak extent, but this year it could set a record seasonal low.
11 March 2015, 04:59 PM ET
A new view of California's earthquake risk slightly raises the likelihood of big earthquakes in the Golden State, but lowers the chance that people in some regions will feel shaking from smaller magnitude-6.7 quakes.
11 March 2015, 09:35 AM ET
Iron vapor from cosmic impacts during the early days of Earth could have triggered "metal rain" to fall on the newborn planet, researchers say.
11 March 2015, 07:07 AM ET
At least seven snowy owls have been spotted in New York City since December, and scientists are reaping the benefits. By tagging the owls, researchers have learned surprising things about the birds' feeding habits and ecology.
11 March 2015, 06:58 AM ET
Isolated glaciers can store liquid water in their upper layers for years, similar to firn aquifers found in Greenland.
10 March 2015, 10:16 PM ET
The San Andreas Fault in California is a strike-slip fault that marks the boundary between two of Earth's tectonic plates.
10 March 2015, 10:05 PM ET
The different ways that the environment gets contaminated.
10 March 2015, 05:11 PM ET
Weather patterns drew a dividing line between West and East in the United States in February, according to NASA.
09 March 2015, 04:51 PM ET
Florida, one of the states most susceptible to the effects of climate change and sea-level rise, verbally banned state environmental officials from using the term "climate change," an investigation revealed. But the Sunshine State isn't the only U.S. stat
09 March 2015, 11:02 AM ET
Toxic lead buried in icy layers of an Andes glacier reveals that leaded gasoline was the region's worst polluter in the last 2,000 years.
06 March 2015, 05:02 PM ET
The bone-chilling cold weather that blasted the eastern United States in winter 2014-2015 was miserable, but no record-breaker.
06 March 2015, 12:06 PM ET
Four geologists in Iceland had the hottest job on Earth this week. To capture accurate measurements of toxic volcanic gases, the scientists climbed directly into Baugur crater on Wednesday.
05 March 2015, 11:05 PM ET
Each year, rip currents kill more people than sharks or jellyfish or even hurricanes.
05 March 2015, 12:59 PM ET
A weak El Nino has finally emerged a year after its first signs of forming, but weather impacts will be muted.
05 March 2015, 08:14 AM ET
As the outlook for animals like elephants and rhinos turns grim, wildlife experts are seeing some signs of encouragement that the illegal trade of ivory and other animal products is being treated as a serious crime.
05 March 2015, 07:45 AM ET
Hawaii's big, booming eruptions are born from a pair of two relatively small magma chambers under Kilauea volcano's peak.
05 March 2015, 12:46 AM ET
A new 3D camera can capture single snowflakes as they fall, and it's revolutionizing how forecasters predict the impacts of stormy winter weather.
05 March 2015, 12:19 AM ET
You've seen the greeting cards and the (possibly doctored) black and white photographs, but what do snowflakes really look like?
04 March 2015, 10:02 PM ET
Deforestation, the permanent destruction of forests in order to make the land available for other uses, is considered to be a contributing factor to global climate change.
04 March 2015, 03:53 PM ET
The sunken remains of the Japanese battleship Musashi were found in the Sibuyan Sea, off the coast of the Philippines, according to an announcement made this week by Microsoft co-founder Paul Allen. Check out these haunting photos of the shipwreck.
04 March 2015, 12:23 PM ET
More than 70 years after it sank during World War II, the legendary Japanese battleship Musashi has been discovered off the coast of the Philippines by Microsoft co-founder Paul Allen.
04 March 2015, 08:30 AM ET
A small early morning eruption at Chile's Villarrica volcano lit the night sky with a spectacular display glowing ash and sputtering lava.
04 March 2015, 07:44 AM ET
The organ pipe cactus is one of the more spectacular species of cactus found in the Sonoran Desert. Check out these fascinating photos of the organ pipe cactus.
04 March 2015, 07:36 AM ET
Arctic sea ice — the ice that freezes and floats on Arctic waters — is thinning at a steadier and faster rate than researchers previously thought, a new study finds.
03 March 2015, 01:17 PM ET
University of Utah engineer Cale Fallgatter and atmospheric scientist Tim Garrett captured falling snowflakes to improve weather warning and road condition forecasts. But, in the process, they explode an old myth: the symmetrical snowflake.
02 March 2015, 06:36 PM ET
California's severe drought is just a taste of the dry years to come, thanks to global warming, a new study finds.
02 March 2015, 02:53 PM ET
Iceland's biggest volcanic eruption in more than 200 years has ended for now.
02 March 2015, 08:32 AM ET
Geysers erupt, sending steam and hot water hundreds of feet into the air, because of a series of loops and side chambers hidden deep below the surface that allow water to boil first at the top and then cascade downward, a new study suggests.
02 March 2015, 08:26 AM ET
Geysers erupt, sending steam and hot water hundreds of feet into the air, because of a series of loops and side-chambers hidden deep below the surface that allow water to boil first at the top and then cascade downward, suggests a new study. It settles a
28 February 2015, 06:35 PM ET
This is a good question, however I think it’s possibly something of a red herring.
27 February 2015, 06:34 PM ET
This week, ocean explorers mourned the loss of a legend in their field: Eugenie Clark, a marine biologist and authority on sharks.