Planet Earth Archive
12 March 2014, 12:16 PM ET
This stunning wallpaper shows a decorated saguaro under a moonlit sky at Saguaro National Park in Arizona.
12 March 2014, 12:00 PM ET
Climate change, fire suppression efforts and housing developments in dry forests raise the risks of megafires in the American West.
12 March 2014, 09:51 AM ET
Climate change could put the kibosh on some of the biggest waves on Australia's east coast, disappointing surfers everywhere.
12 March 2014, 02:48 AM ET
How can forests survive when energy needs skyrocket in Latin America?
11 March 2014, 08:47 PM ET
From filling in the map of the world to taking man's first step on the moon, intrepid explorers set out on these arduous expeditions at least partly in the name of science.
11 March 2014, 05:00 PM ET
The storm smash-up that morphed Hurricane Sandy into a hybrid weather monster left a chemical trail that scientists have decoded with the help of crowdsourced water samples.
11 March 2014, 02:39 PM ET
The Mongol invasion was probably made possible by an unusual warm, wet spell that carpeted Asia with grass and provided food for the horses and livestock of Genghis Khan's armies.
11 March 2014, 11:50 AM ET
Millions of Japanese marked the third anniversary of the 2011 Tohoku earthquake and tsunami on Tuesday.
11 March 2014, 11:43 AM ET
You may owe your life to the lowly sea sponge. Flourishing in extreme, deep-ocean environments hundreds of millions of years ago, sponges may have helped produce the oxygen requisite for the explosion of more complex life forms on Earth, a new study says.
11 March 2014, 10:02 AM ET
A new model helps explain why the Sahara settled east of the Atlantic instead of sailing off with South America — it's all about the angles.
11 March 2014, 09:05 AM ET
A recent luncheon in Washington, D.C., celebrated the legendary meteorologist Robert Simpson, one of the creators of the Saffir-Simpson Scale, which measures hurricane intensity.
10 March 2014, 11:08 PM ET
Tree-ring data sheds light on climate change's historic and modern impact.
10 March 2014, 10:56 PM ET
Open ocean clouds have been found to contain biological substances that can be traced to the waters where they formed.
10 March 2014, 04:23 PM ET
Thanks to the government shutdown and Hurricane Sandy, America's national parks saw a three percent drop in visitors last year from 2012.
10 March 2014, 03:00 PM ET
Like an ice age radiator, heat from volcanoes helped Antarctica's plants and bugs survive Earth's glacial periods.
10 March 2014, 02:36 PM ET
FEMA's new NYC flood maps are already outdated.
10 March 2014, 11:46 AM ET
The Icicle Atlas is a soon-to-be open online database containing images of more than 200 lab-grown icicles as they develop. Here are some of these images of frozen beauty.
10 March 2014, 09:43 AM ET
Antarctica is the coldest, windiest, driest continent on the planet, and researchers are still discovering many of its secrets. Find out some of the most interesting facts about the southernmost continent!
10 March 2014, 08:39 AM ET
An earthquake of preliminary magnitude 6.9 struck last night off the coast of northern California, according to the U.S. Geological Survey (USGS).
09 March 2014, 02:01 PM ET
Researchers have found four new substances in the stratosphere capable of depleting the ozone layer.
09 March 2014, 02:00 PM ET
The oceans became a lethal sulfuric-acid stew after the huge asteroid impact that wiped out the dinosaurs some 65 million years ago, a new study suggests.
08 March 2014, 04:03 AM ET
Whether in food or cosmetics, palm oil is everywhere — but where is it coming from?
07 March 2014, 03:56 PM ET
Antarctica may be the last place one would expect to find a mathematician, but Ken Golden isn't your average mathematician. Golden, a mathematician at the University of Utah, is using math to model the melting of the polar ice caps.
07 March 2014, 03:46 PM ET
Mathematician Ken Golden has taken multiple trips to the Antarctic and Arctic to study the math of melting sea ice.
07 March 2014, 01:58 PM ET
A new study confirms that one of Oklahoma's biggest man-made earthquakes, caused by fracking-linked wastewater injection, triggered an earthquake cascade that led to the damaging magnitude-5.7 Prague quake on Nov. 6, 2011.
07 March 2014, 08:40 AM ET
Geoscientists are pioneering a new way to make sense of past ice ages — with volcanoes that erupted through ancient ice sheets.
07 March 2014, 05:00 AM ET
06 March 2014, 11:58 PM ET
Will the power plants that bring energy independence encroach on wildlife?
06 March 2014, 11:07 PM ET
According to a new analysis, the U.S. is at risk for its own Fukushima-like disaster.
06 March 2014, 03:53 PM ET
A bevy of satellites have caught a bird's-eye view of Guatemala's Pacaya volcano since the peak erupted on March 2.
06 March 2014, 02:00 PM ET
A model for how river networks take shape, such as in the Appalachians, could help improve understanding of how landscapes change through time.
06 March 2014, 12:04 PM ET
New 3D images from beneath a volcano in the Galapagos Islands show how these volcanoes differ from those in Hawaii.