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Bobbing Mountains
Topic: Geology
02/01/06
Two new studies by a University of Rochester researcher show that mountain ranges rise to their height in as little as two million years--several times faster than geologists have always thought. Each of the findings came from two pioneering methods of measuring ancient mountain elevations, and the results are in tight agreement.

Sculpting Mountains
Topic: Geology
12/16/05
Glaciers, rivers and shifting tectonic plates have shaped mountains over millions of years, but earth scientists have struggled to understand the relative roles of these forces and the rates at which they work.

Early Earth with Crust Please
Topic: Geology
11/23/05
A surprising new study by an international team of researchers has concluded Earth's continents most likely were in place soon after the planet was formed, overturning a long-held theory that the early planet was either moon-like or dominated by oceans.

Earth's Super Rotating Core
Topic: Geology
08/31/05
Scientists at Columbia University's Lamont-Doherty Earth Observatory and the University of Illinois at Urbana-Champaign have ended a nine-year debate over whether the Earth's inner core is undergoing changes that can be detected on a human timescale.

Snowball Earth Culprit Found?
Topic: Geology
08/07/05
For several years geologists have been gathering evidence indicating that Earth has gone into a deep freeze on several occasions, with ice covering even the equator and with potentially devastating consequences for life.

Thumping the Earth like a Watermelon
Topic: Geology
05/20/05
Oscillations begun by the Sumatra-Andaman earthquake in December 2004 are providing important information about the composition of the Earth as well as the size and duration of the earthquake.

Tides of Tectonic Forces
Topic: Geology
01/06/05
Science-fiction author, Sir Arthur C. Clarke, provides perspective on the tsunami disaster from his home in Sri Lanka. As one of the first to call for global satellite networks in 1945, his half-century legacy has played a key role in mitigating tragedies that offered few warning signs.

The Breathable Earth
Topic: Geology
11/20/04
How did Earth achieve an atmosphere that is oxygen-rich and breathable, while Mars and Venus couldn't? One answer is that deeper, mantle volcanoes started bringing up water vapor and carbon dioxide, instead of hydrogen and carbon monoxide.

Soft-Shelled Crab, Fossil-Style
Topic: Geology
11/19/04
One of the mysteries in paleontology is how extraordinary preservation happens and whether a soft-shelled animal can be studied in the fossil record. One instance of this that seems plausible is the decayed carcass that gets consumed by bacteria, which then encase and preserve the earliest animals.

Wireless Volcano Grid Erupts
Topic: Geology
09/23/04
Harvard researchers have set up a wireless array of sensors to monitor seismic activity in Ecuador. Seismologists collect vast amounts of data, but their load back down the volcano will be lightened both in cost and burden by going wireless.

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