31 March 2015, 12:51 PM ET
Sunset Crater, located in north-central Arizona, is the youngest volcano found on the 130,000-square-mile (337,000 square kilometers) Colorado Plateau. Check out these stunning images of an iconic geological feature in the Southwest.
30 March 2015, 07:51 AM ET
The Aral Sea is shrinking, leaving a dried-up white lakebed where there used to be blue water. But in the eyes of a radar satellite, the sea's shores look like a colorful abstract painting.
27 March 2015, 12:30 PM ET
In West Antarctica, some ice shelves could melt away within a century.
26 March 2015, 04:28 PM ET
The oddly calm tornado season owes a debt to the weather patterns responsible for the East's cold, snowy spring and the West's warm, dry drought.
26 March 2015, 11:53 AM ET
Colossal icebergs careening along the Antarctic coastline can shut down the deep, cold currents that help drive ocean circulation.
25 March 2015, 04:43 PM ET
Pine Island Glacier in West Antarctica flowed about 325 feet (100 meters) between March 3 and March 15, 2015.
25 March 2015, 07:07 AM ET
The spring snowmelt comes more than two weeks earlier than it did in the 1970s in Wyoming's Wind River Range, a new study finds.
24 March 2015, 10:20 AM ET
On the 200th anniversary of the "map that changed the world," The Geological Society of London is celebrating with gusto and honoring William Smith, in addition to unveiling a rediscovered map that they uncovered in their library.
24 March 2015, 09:24 AM ET
A new layer of stiff rock may unexpectedly exist deep inside Earth, researchers say.
23 March 2015, 05:13 PM ET
Sometime between 300 million and 600 million years ago, a massive space rock split in two before colliding with the planet.
23 March 2015, 03:51 PM ET
A two-week-long seafaring mission off the coast of western Australia has helped illuminate a deep and dark underwater abyss the size of the Grand Canyon.
23 March 2015, 02:46 PM ET
Taken together, monitors and personal computers draw electricity equivalent to the energy from three dozen power plants — but that energy sink may soon get plugged.
23 March 2015, 02:00 PM ET
Scientists at the University of Western Australia used a robotic sub to explore Perth Canyon, a relatively unstudied ocean gorge that is roughly the same size as the Grand Canyon.
21 March 2015, 09:50 AM ET
The 14th annual Wellcome Image Awards were presented on March 18, highlighting 20 incredible medical images that ranged from the uterus of a pregnant pony and a cat's tongue to a mouse brain and greenfly eye.
20 March 2015, 07:40 AM ET
Arctic sea ice hit its annual peak early this year, and climate scientists say the North's below-average ice conditions made this year's maximum extent the lowest on record.
19 March 2015, 07:14 PM ET
Spring arrives on Friday, and you might want to make the most of it. The season of flowers and showers actually gets shorter every year by about 30 seconds to a minute, due to astronomical quirks, researchers say.
19 March 2015, 12:18 PM ET
Despite the never-ending chill and snow in the U.S. Northeast this year, the globe experienced the warmest winter months since record keeping began in 1880, scientists say.
19 March 2015, 09:02 AM ET
Global emissions of carbon dioxide stalled in 2014, marking the first time in 40 years that there was no climb in emissions during a time of economic growth. This suggests efforts to reduce emissions may be working, but experts say it's not that simple.
18 March 2015, 01:20 PM ET
A glacier the size of California in East Antarctica is in danger of melting away, which could lead to an extreme thaw increases sea levels by about 11.5 feet (3.5 meters) worldwide if the glacier vanishes, a new study finds.
18 March 2015, 09:09 AM ET
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17 March 2015, 12:47 PM ET
A booth at the South by Southwest Interactive festival throws random strangers together to solve a puzzle, and escape a locked Alaskan cabin exposed to the elements.
16 March 2015, 04:10 PM ET
A 17-million-year-old beaked whale fossil is helping researchers solve a puzzle about the likely birthplace of humanity in East Africa, a new study finds.
16 March 2015, 01:17 PM ET
This year's El Niño may deliver a quiet tornado season.
13 March 2015, 02:25 PM ET
New evidence reveals that the ancient coral tombs of Leluh in Micronesia could be up to 700 years old — much older than previously thought.
13 March 2015, 02:12 PM ET
Stunning lightning storms inside of towering volcanic ash clouds created tiny glass balls.
13 March 2015, 08:17 AM ET
New images of the recent eruption of one of Chile's most active volcanoes reveal how powerful blasts of lava and ash blanketed the mountain's side with volcanic material.
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.