27 February 2014, 12:25 PM ET
Researchers recently discovered a new crystal defect in olivine that helps explain how the mantle drives plate tectonics.
27 February 2014, 07:02 AM ET
Google Street View has taken viewers to the Amazon, the Galapagos, and now, the Canadian Arctic — the home of polar bears. Starting today, on International Polar Bear Day (Feb. 26), people around the world will be able to see the bears in their natural ha
26 February 2014, 02:37 PM ET
Photographer captures stunning look at stellate leaf hairs on the deciduous shrub Deutzia scabra.
26 February 2014, 09:49 AM ET
This spectacular wallpaper shows North Cascades National Park Service Complex in Washington. Jagged peaks, deep valleys, cascading waterfalls and more than 300 glaciers adorn this diverse and rugged land.
26 February 2014, 01:36 AM ET
The mysterious flashes of lightning that sometimes precede or accompany a temblor, called earthquake lights, could be caused by the shifting of grains in the ground surrounding faults.
25 February 2014, 09:47 PM ET
What is the future for water on Earth?
25 February 2014, 07:20 PM ET
California's startling transformation from green to brown, an effect of the ongoing drought, may be most striking when viewed from space. That's one reason NASA is tracking the impact of California's extreme drought, in partnership with state and federal
25 February 2014, 05:32 PM ET
For International Polar Bear Day, Google Maps unveiled Street View imagery of polar bears in their natural habitat, in Churchill, Canada.
25 February 2014, 03:19 PM ET
California springtime usually means spectacular fiery displays of flowers and flowing waterfalls, but this year's drought is putting a damper on the state's natural wonders.
25 February 2014, 03:11 PM ET
For reptiles and amphibians, southern Peru's Manu National Park is the most diverse protected area on the planet.
25 February 2014, 02:36 PM ET
Climate and ocean-circulation changes that happened millions of years ago likely contributed to the differences in appearance between certain species of male and female seals.
25 February 2014, 11:40 AM ET
Geoengineering schemes aimed at staving off the worst effects of climate change wouldn't do much to ease the situation and could actually make global warming worse, a new model study suggests.
25 February 2014, 11:01 AM ET
A massive ocean garbage patch houses mysterious microbial communities that thrive on plastics, and new research is untangling how they impact the ocean ecosystem as a whole.
25 February 2014, 10:06 AM ET
Peru's Manu National Park is home to 287 species of reptiles and amphibians, making it the most diverse protected area on the planet.
25 February 2014, 12:43 AM ET
Our unfolding understanding of the universe is marked by epic searches and we are now on the brink of discovering something that has escaped detection for many years.
24 February 2014, 05:52 PM ET
A pilot in Alaska has provided the first images of a landslide that occurred last week and that may be the largest since 2010.
24 February 2014, 05:48 PM ET
Radiation from Japan's leaking Fukushima nuclear power plant has reached waters offshore Canada.
24 February 2014, 01:58 PM ET
An aquatic salamander feared to have disappeared from Mexico's lakes, its only-known natural habitat in the wild, has been spotted again. Researchers sighted two of the salamanders, known as an axolotls, but did not capture any.
24 February 2014, 01:48 PM ET
Computer simulations have been accurate in predicting where debris from the 2011 tsunami in Japan would wash ashore, scientists say.
24 February 2014, 01:21 PM ET
Britain's wettest winter on record has saturated the ground, causing a higher number of sinkholes than usual to open up, swallowing cars and crumbling houses.
24 February 2014, 12:37 PM ET
The United States braces itself for another bout of Arctic air next week. We explain where that air is coming from and why it is considered part of what is known as a "polar vortex."
24 February 2014, 11:34 AM ET
Nearly three years after the Fukushima nuclear disaster, the Japanese government will for the first time allow a small number of people to return to their homes.
23 February 2014, 01:14 PM ET
Increasingly, improving the lots of people around the world requires ever-more carbon emissions, new research finds. Unless something changes, it's unlikely that development and sustainability can go hand-in-hand.
23 February 2014, 01:02 PM ET
By zapping single atoms of lead in a tiny zircon crystal from Australia, researchers have confirmed the crystal is the oldest rock fragment ever found on Earth — 4.4 billion years old.
23 February 2014, 01:00 PM ET
Cooling caused by volcanic eruptions accounts for 15 percent of the global warming "pause," the mismatch between actual warming and climate-model predictions.
23 February 2014, 01:00 PM ET
The range of lifestyles seen on the ocean floor of ancient Earth was changed little by the end-Permian mass extinction, the greatest die-off of life on Earth, a new study shows.
22 February 2014, 03:17 AM ET
Can carbon standards survive against a public disinformation campaign?
21 February 2014, 03:27 PM ET
Winter Olympians talk about the changes they've seen in snow cover during their careers -- and urge climate action to prevent further warming.
21 February 2014, 03:14 PM ET
An outbreak of severe weather battered parts of the midwestern and southern United States yesterday (Feb. 20), with damaging winds, strong storms and even several tornadoes reported in Illinois and Georgia.
21 February 2014, 02:06 PM ET
A deep freeze has settled in over the Great Lakes this winter and a new image released by NASA shows the astonishing extent of the ice cover as seen from space.
21 February 2014, 01:47 PM ET
A thief has removed the track of a three-toed dinosaur from public lands near Moab, Utah, and Bureau of Land Management officials are looking for help to get the priceless artifact back.
21 February 2014, 11:31 AM ET
The number of deaths in Northern California from so-called sneaker waves, large waves that suddenly swamp a beach and often take people unawares, prompted one meteorologists to start forecasting the conditions that would bring the waves.