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Category: Geochemistry, Geophysics

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Picture of GPS receiver
29 September 2009 | ScienceNOW

GPS: Got Plenty of Snow?

by Phil Berardelli
Scientists use global positioning systems to map snowfall
Picture of bubbles
23 September 2009 | ScienceNOW

Preindustrial People Had Little Effect on Atmospheric Carbon Levels

by Phil Berardelli
A 7-millennia-long increase in carbon dioxide arose mostly from natural causes
Picture of California's Gabilan Mesa region
22 July 2009 | ScienceNOW

How Nature Shapes the Land

by Phil Berardelli
New study solves mystery of why hills and valleys are so evenly spaced
Picture of Easter island statue
8 July 2009 | ScienceNOW

Fountain of Youth on Easter Island?

by Gisela Telis
Compound found in soil extends life span of mice
Picture of Toba
7 July 2009 | ScienceNOW

Did an Ancient Volcano Freeze Earth?

by Phil Berardelli
Models gauge eruption's catastrophic potential
Picture of planet
15 June 2009 | ScienceNOW

Recipe for Life: Water and a Little Lava

by Phil Berardelli
Habitable planets require just the right amount of volcanism
Picture of Chi-Ching Liu
10 June 2009 | ScienceNOW

Raging Typhoons May Soothe Quakes

by Richard A. Kerr
Storms crossing Taiwan seem to trigger slow, harmless earthquakes
Picture of Quaternary period
3 June 2009 | ScienceNOW

The Quaternary Period Wins Out

by Richard A. Kerr
Geoscientists are making room for an interval of time that is uniquely human
Picture of Trans-Alaska Pipeline
28 May 2009 | ScienceNOW

Arctic May Boost Oil and Gas Reserves

by Jackie Grom
Significant percentage of world's energy resources lies buried in the far north
Picture of crust
20 May 2009 | ScienceNOW

Earth's Hellish Era Not So Bad for Life

by Richard A. Kerr
Massive impacts didn't sterilize our planet, according to new simulation
Picture of lava
6 May 2009 | ScienceNOW

Volcanic Fish Out of Water

by Phil Berardelli
An African mountain behaves like it belongs on the sea floor
Def
16 April 2009 | ScienceNOW

How Early Was Oxygen's Rise?

by Richard A. Kerr
New lab experiments challenge ideas about when oxygen arrived in Earth's atmosphere
Picture of mammoth
1 April 2009 | ScienceNOW

NOVA Does the Mammoth-Killing Impact

by Richard A. Kerr
Public television's take on what killed off ice age animals dazzles but doesn't convince
Picture of hands
16 March 2009 | ScienceNOW

Southpaw Solar System

by Phil Berardelli
Meteorites might have seeded early Earth with "left-handed" amino acids
Picture of volcano
8 December 2008 | ScienceNOW

Shaken Volcanoes Blow Their Tops

by Phil Berardelli
Major earthquakes can set off far-flung eruptions
Picture of southwestern coast of Sumatra, Indonesia
3 December 2008 | ScienceNOW

Another Big One for Indonesia?

by Phil Berardelli
New analyses show continuing threat of a major earthquake and possible Indian Ocean tsunami
Picture of impact crater
1 December 2008 | ScienceNOW

Lasers Uncover Craters

by Phil Berardelli
New technology pinpoints previously unknown meteor impacts
Picture of hazenite
14 November 2008 | ScienceNOW

Earth's Minerals Evolved, Too

by Phil Berardelli
Life and rocks have changed in concert
Picture of burial
3 November 2008 | ScienceNOW

Diesel Fuel From a Tree Fungus?

by Robert F. Service
Microbe's hydrocarbon stew could one day supplant fossil fuels
Picture of Southeast Asian soil
29 October 2008 | ScienceNOW

A Disaster Spelled Out in Sand

by Rachel Zelkowitz
Clues to earlier tsunamis embedded in soil
Picture of experiment
16 October 2008 | ScienceNOW

Did Volcanoes Spark Life on Earth?

by Phil Berardelli
Classic experiment yields new clues to life's origins
Picture of stalagmites
2 October 2008 | ScienceNOW

Caving for Seismic History

by Phil Berardelli
Stalagmites may serve as record of past earthquakes
Picture of earthquake
12 September 2008 | ScienceNOW

China Quake No Stress Reliever

by Phil Berardelli
Temblor last May could have activated adjoining fault lines
Picture of ancient civilizations
22 August 2008 | ScienceNOW

Did Rumbling Give Rise to Rome?

by David Malakoff
Ancient civilizations preferred to settle along the edges of earthquake-prone regions
Picture of eastern United States
22 August 2008 | ScienceNOW

New York May Be Overdue for Quake

by Phil Berardelli
Survey reveals recent temblors, previously unknown fault zone
Picture of Himalayas
29 July 2008 | ScienceNOW

Take a Deep Breath--and Thank Mount Everest

by Phil Berardelli
Plate tectonics gave rise to atmospheric oxygen
Picture of drilling
9 July 2008 | ScienceNOW

Fair Warning From Earthquakes?

by Richard A. Kerr
Drill holes near the San Andreas fault have yielded a possible harbinger of temblors
Picture of volcanic glass bits
9 July 2008 | ScienceNOW

A Trickle on the Moon

by Phil Berardelli
New chemical analyses and computer models find water molecules in lunar soil
Picture of channels
2 July 2008 | ScienceNOW

Rain on the Martian Plain?

by Phil Berardelli
A new soil analysis suggests a drizzly past for the Red Planet
Picture of ice
4 June 2008 | ScienceNOW

Something's Shaking in Antarctica

by Douglas Fox
Team discovers twice-daily, magnitude-7 ice quakes on the frozen continent
Picture of Box Canyon
22 May 2008 | ScienceNOW

Martian Canyons by a Trickle or a Gush?

by Richard A. Kerr
Geologists are re-evaluating valleys long interpreted as signs of a warm and wet early Mars
Picture of crushed buildings
21 May 2008 | ScienceNOW

Chinese Researchers Take Stock After Quake

by Richard Stone Chen Xi Hao Xin
Massive temblor may shift priorities for geologists, ecologists, and others
Picture of collapsed building
12 May 2008 | ScienceNOW

Chinese Quake Likely a Mega-Catastrophe

by Richard A. Kerr
Seismologists foresee biggest killer since 1976
Picture of researchers
8 May 2008 | ScienceNOW

A Slow Birth for the Sahara

by Mico Tatalovic
African desert didn't dry out as quickly as thought
Picture of dinosaurs
29 April 2008 | ScienceNOW

Fire and Brimstone, Cretaceous Style

by Phil Berardelli
An oil inferno may have done in the dinosaurs
Picture of Grand Canyon
11 April 2008 | ScienceNOW

Did Dinosaurs Gawk at the Grand Canyon?

by Phil Berardelli
New readings push back the gorge's age by tens of millions of years
Picture of solar output
12 March 2008 | ScienceNOW

Not Much Warming Under the Sun

by Phil Berardelli
Compared to human activity, solar radiation plays a small role in climate change
Picture of deforestation
24 January 2008 | ScienceNOW

Human-Driven Planet: Time to Make It Official?

by Phil Berardelli
Geologists propose a new epoch recognizing the primary cause of global change
Picture of under-ice volcanic eruption
22 January 2008 | ScienceNOW

Fire Below the Ice

by Phil Berardelli
An active volcano could be warming the West Antarctic Ice Sheet
Picture of hot springs
18 January 2008 | ScienceNOW

The Secret Ingredient in Yellowstone's Travertine

by Carol Potera
Researcher presents first evidence that microbes are key to Hot Springs mineralization
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