Earth Sciences

Earth Sciences

Life Emerged on Land 300 Million Years Sooner Than Believed

In a layer that has been dated at 3.22 billion years old, tiny grains of the iron sulfide mineral pyrite were discovered that show telltale signs of microbial…

Earth Sciences

Understanding Arctic Sea-Ice Melt: Key Contributions Unveiled

These numbers allow one for the first time to grasp the individual contribution to global climate change. The study also explains why climate models usually…

Earth Sciences

New Instrument Aims to Detect Life Signs on Mars

Branimir Blagojevic, a NASA technologist at the Goddard Space Flight Center in Greenbelt, Maryland, formerly worked for a company that developed the sensor. He…

Earth Sciences

Arctic Sea Ice Decline: Impact on Summer Warming Trends

“What we've seen over the years is that the older ice is disappearing,” said Walt Meier, a sea ice researcher at NASA's Goddard Space Flight Center in…

Earth Sciences

UCI & NASA Discover Accelerated Glacier Melting in Antarctica

Two new studies by researchers at the University of California, Irvine and NASA have found the fastest ongoing rates of glacier retreat ever observed in West…

Earth Sciences

Microbial Communities Thrive in Deep Fracking Wells

Microbes have a remarkable ability to adapt to the extreme conditions in fracking wells, according to a study published in the October issue of Nature…

Earth Sciences

Massive Dome in Central Andes Linked to Hidden Magma Source

A new analysis of the topography of the central Andes shows the uplifting of the Earth's second highest continental plateau was driven in part by a huge zone…

Earth Sciences

Ice Shelf Vibrations Create Unusual Waves in Antarctic Atmosphere

Scientists at McMurdo Station detected unusual atmospheric waves with an altitude between 30 to 115 kilometers (20 to 70 miles) above Antarctica in 2011. The…

Earth Sciences

Discovering Hidden Life Under Arctic Ice: New Research Insights

Under the ice of the Arctic, unknown habitats conceal an unexpected variety of living beings. On October 23rd, 46 scientists are expected to return to the home…

Earth Sciences

Bolivia’s Glacial Melt: Communities Face Water Supply Risks

Receding glaciers also put water supply in the region at risk. Glacial meltwater is important for irrigation, drinking water and hydropower, both for mountain…

Earth Sciences

UM Researchers Explore Ocean’s Carbon Reservoirs in Depth

The oceans hold a vast reservoir–700 billion tons–of carbon, dissolved in seawater as organic matter, often surviving for thousands of years after being…

Earth Sciences

Archaeal Butane Degradation Unraveled in Seafloor Study

Gaseous hydrocarbons in the seafloor

Earth Sciences

Earthquake Impact: Uplift Variations at Continental Margins

To test their hypothesis, the scientists investigated ancient coastlines that were preserved over time, so-called paleoshorelines, to determine the rate of…

Earth Sciences

FSU geologist explores minerals below Earth's surface

A Florida State University geology researcher is going deep below the Earth's surface to understand how some of the most abundant minerals that comprise the…

Earth Sciences

NASA apots Typhoon Songda's cloud-filled eye

Tropical storm Songda, the twenty-third tropical cyclone of the northwestern Pacific Ocean formed on Oct. 9. At 5 a.m. EDT (0900 UTC) Songda was located about…

Earth Sciences

Antarctic Ice Sheet Shrinks: CO2 Spike’s Historic Impact

Twenty-three million years ago, the Antarctic Ice Sheet began to shrink, going from an expanse larger than today's to one about half its modern size. Computer…

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