Planet Earth Archive
24 November 2015, 08:44 AM ET
Not many people can say they have traveled to the edge of space, but a team of scientists and engineers is daring to join those ranks.
23 November 2015, 06:11 PM ET
Brookhaven National Laboratory chemist Ray Davis built an experiment to detect neutrinos coming from the Sun. He placed his detector nearly a mile underground in the Homestake gold mine in South Dakota.
23 November 2015, 03:09 PM ET
At least some of the plates squished beneath the ocean floor are stretchier than previously thought, which could force geologists to rethink a process known as flat-slab subduction.
23 November 2015, 07:22 AM ET
The rotation of the newborn Earth may have helped to control the evolution of a giant magma ocean sitting on top of its core, researchers say. Knowing how Earth's magma oceans evolved over time could shed light on when the plate tectonics began.
22 November 2015, 12:07 PM ET
In the Fourche River Valley in northeastern Wyoming, an unmistakeable and unique geological wonder arises from the desolate, high plains landscape.
20 November 2015, 01:55 PM ET
They were the worst of times. (Really, the worst.)
20 November 2015, 01:21 PM ET
The 13-foot-tall trees were tightly packed into this 385-million-year-old forest. Here's a look at the fossilized remains of the sprawling ecosystem.
20 November 2015, 01:12 PM ET
The giant rock weighs nearly half a pound.
20 November 2015, 08:49 AM ET
An ancient fossil forest in Norway with tropical origins is one of the earliest forests to appear on Earth.
19 November 2015, 10:33 PM ET
Blaming severe storms on climate change? Not so fast.
19 November 2015, 02:26 PM ET
Recent NASA research shows that Antarctica seems to be gaining ice, but this finding has been met with skepticism. The research also doesn't support the assumption that climate change is ending; the story is more complicated than that.
18 November 2015, 06:39 PM ET
NOAA and NASA said October had the biggest temperature departure of any month in 100-plus years.
16 November 2015, 02:22 PM ET
This year's particularly strong El Niño is expected to get even stronger before it's done.
13 November 2015, 08:06 AM ET
Supervolcanoes, such as the one dormant under Yellowstone National Park, may erupt when cracks form in the roofs of the chambers holding their molten rock, according to a new study.
12 November 2015, 02:03 PM ET
A new study delivers the first evidence that water in ancient dust grains collected at the heart of an infant Earth during its formative years.
12 November 2015, 01:02 PM ET
For at least the past 50 years, about half of all Earth’s carbon dioxide emissions - human and natural - have been absorbed by the land and oceans. Scientists are trying to understand how much more CO2 this global carbon sink can take.
12 November 2015, 12:53 PM ET
Scientists are studying the heat trapping behavior of CO2 released by land-clearing and accidental forest fires vs. factories in large urban centers. The data producing this simulation were taken during a 5-day period in June 2006.
12 November 2015, 12:40 PM ET
NASA Orbiting Carbon Observatory 2, launched in July 2014, measures global atmospheric carbon dioxide. Data from May to August 2015 were compiled to create this visualization.
12 November 2015, 12:36 PM ET
Plant growth and decay on land and ocean over a 12-moth cycle can be seen in this ‘average year’ data set, compiled from many science imaging satellites
11 November 2015, 03:38 PM ET
North America rocks. That’s what a new three-part series from "NOVA" shows as it explores the rich history of the continent — from glaciers in Alaska to volcanoes in Hawaii to the crystal-clear waters of the Bahamas.
11 November 2015, 09:41 AM ET
Shenyang's smog is even a problem for healthy individuals.
11 November 2015, 07:53 AM ET
An ozone hole larger than the North American continent was observed over Antarctica by researchers at the German Aerospace Center. It's the first time the ozone hole has been this large since 2006.
10 November 2015, 04:00 PM ET
Theobroma cacao, the tree that produces chocolate, first diverged from its nearest relatives about 10 million years ago, new research suggests.
06 November 2015, 01:19 PM ET
President Obama said Friday that the pipeline would not serve the national interest of the United States.
06 November 2015, 12:04 PM ET
New experiments have confirmed a giant ocean of magma, or molten rock, might have existed in the lowermost part of Earth's mantle long ago. Remnants of this ocean still exist below our planet's surface, X-ray measurements reveal.
05 November 2015, 10:54 PM ET
If you want a clean fuel, you should look beyond methane.
05 November 2015, 07:06 AM ET
Since the 1970s, it has been suggested that kangaroos don’t fart — or rather, the (ahem!) gas they emit contains very little, if any, methane. But now, new research suggests this isn’t true.
04 November 2015, 01:12 PM ET
To fight global warming, wealthy nations need to actually ask poor nations what they need.
04 November 2015, 12:13 AM ET
To get a handle on sea ice "composites", send mathematicians to the poles.
03 November 2015, 03:09 PM ET
The man-made fires in Borneo have hit orangutans hard, displacing them from their homes and exposing the animals to enough smoke to make them susceptible to respiratory problems.
03 November 2015, 02:20 PM ET
A gaping crack the length of six football fields that opened up in a matter of one to two weeks in northern Wyoming is likely the product of a landslide, geologists said.
03 November 2015, 11:03 AM ET
The stretching of the Earth's crust in a seismically transitional region likely caused the three quakes that struck Phoenix, Arizona, Sunday night. Such temblors are relatively uncommon in the state.
01 November 2015, 12:15 PM ET
Avalanching dunes can create their own music, when toppling sand erupts first with staccato burps and then with monotone "singing" booms. These tunes have long intrigued scientists, and now a team of physicists has deciphered why they occur.
29 October 2015, 03:49 PM ET
The Atacama Desert, one of the driest places on Earth, has exploded into a riot of color thanks to a rare spring flower bloom.
29 October 2015, 12:07 PM ET
The Atacama Desert, one of the driest places on Earth, has exploded in a riot of color thanks to a rare spring flower bloom.
29 October 2015, 12:27 AM ET
Cacti need better PR — too many are going extinct.