09 January 2015, 01:44 PM ET
Researchers in remote East Antarctica think a massive area of fractured ice discovered last month could be a newfound meteorite impact crater.
09 January 2015, 08:03 AM ET
The Soil Moisture Active Passive satellite, planned to launch on Jan. 29, will improve drought tracking in the United States and around the world.
09 January 2015, 07:38 AM ET
A leap second will be added to 2015 to keep atomic clock time in sync with Earth's actual rotational time.
08 January 2015, 08:37 PM ET
Groundwater is any freshwater that lies beneath the surface of the Earth.
08 January 2015, 05:20 PM ET
Sin City just got a little greener.
08 January 2015, 11:23 AM ET
A 2004 infrasound recording suggests a 'large body' likely hit the King Baudoin Ice Shelf in East Antarctica. On Dec. 20th, 2014, a circular structure was spotted on the ice shelf during surveys by the International Polar Foundation.
08 January 2015, 08:18 AM ET
Greenland is famous for its massive glaciers, but the region was relatively free of ice until about 2.7 million years ago, according to a new study. Before then, the Northern Hemisphere had been mostly ice-free for more than 500 million years.
08 January 2015, 01:22 AM ET
Straying from the trail, hikers can spread invasive species deep into the woods.
08 January 2015, 12:37 AM ET
Growing winegrapes may be the most backward form of horticulture that exists.
07 January 2015, 10:26 PM ET
The Mesozoic Era saw the rise of some of the most iconic animals, from Tyrannosaurus rex to birds and mammals.
07 January 2015, 10:13 PM ET
These long-lived, large windstorms are difficult to predict.
06 January 2015, 06:38 PM ET
Lake Erie's double ecological disasters may share a common ultimate cause, but they form under different conditions, a new study finds.
06 January 2015, 08:28 AM ET
An Italian warlord who suddenly dropped dead in 1329 was poisoned, a mummy autopsy reveals. Scientists found deadly traces of the toxic plant digitalis, or foxglove, in his system.
05 January 2015, 09:02 PM ET
The Japanese Meteorological Agency has released data showing 2014 was the globe's hottest year.
05 January 2015, 05:00 PM ET
A hydraulic fracturing, or fracking, well in Ohio triggered scores of small earthquakes in March 2014, including one large enough to be felt in nearby towns.
05 January 2015, 04:22 PM ET
It is a mystery why oxygen didn't suffuse the Earth's atmosphere until much after the earliest lifeforms that make oxygen arose. Now, new research suggests a reason for the delay.
05 January 2015, 06:48 AM ET
Two new U.S. research ships will take to the seas in the Arctic and Atlantic in 2015, allowing scientists around the world to explore the geology, biology and health of the oceans.
02 January 2015, 05:25 PM ET
The monarch butterfly, once common across the United States, could soon end up on the Endangered Species List.
02 January 2015, 12:34 PM ET
Scientists say the chance of every volcano erupting at once is so small that it's impossible, but what if it did happen? Would Earth as it now exists survive?
31 December 2014, 02:25 PM ET
In 2015, green might just be the new black.
31 December 2014, 09:09 AM ET
A new simulation predicts that relatively small asteroids could cause big waves on the U.S. coastline, but not everyone thinks the threat is real.
30 December 2014, 06:14 PM ET
A look at five places that will help push 2014 into the global warming record books.
30 December 2014, 02:52 PM ET
California and Nevada will feel an Arctic chill this week when wintry air from Canada arrives on New Year's Eve, possibly setting new record-cold temperatures as revelers ring in the New Year.
30 December 2014, 01:13 PM ET
Big climate news burbled out of the ocean in 2014. Most research findings were hot, but not pretty.
30 December 2014, 12:40 PM ET
A coyote hunter in Utah mistakenly shot and killed an endangered gray wolf, which wildlife groups worry was the same wolf photographed near the Grand Canyon this fall.
30 December 2014, 10:25 AM ET
Droughts in California may cause not only water shortages, but also conditions ripe for dangerous forest fires, landslides and poor water quality.
29 December 2014, 06:25 PM ET
The world's saltiest body of water, hidden away in a dry Antarctic valley, had its portrait taken earlier this year by a NASA satellite.
29 December 2014, 01:59 PM ET
The melting of Earth's polar ice came into starker relief in 2014, with real implications for sea level rise.
29 December 2014, 01:11 AM ET
Ten years ago we witnessed one of the worst natural disasters in history, when a huge earthquake off the coast of Sumatra triggered a devastating tsunami which swept across the Indian Ocean.
26 December 2014, 01:30 PM ET
The results of the most scientific study of cloud seeding done yet are in.
26 December 2014, 06:02 AM ET
As the 10th anniversary of the Indian Ocean tsunami approaches on Dec. 26, greatly expanded networks of seismic monitors and ocean buoys are on alert for the next killer wave.
24 December 2014, 12:43 PM ET
American suburbs light up during the holidays more brightly than inner cities, NASA found.