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02/06/2009

Caltech Scientists Lead Deep-Sea Discovery Voyage

Lori Oliwenstein

Scientists from the California Institute of Technology (Caltech) and an international team of collaborators have returned from a month-long deep-sea voyage to a marine reserve near Tasmania, Australia, that not only netted coral-reef samples likely to provide insight into the impact of climate change on the world's oceans, but also brought to light at least three never-before-seen species of sea life.

12/04/2008

Caltech Researchers Find Ancient Climate Cycles Recorded in Mars Rocks

Kathy Svitil

Researchers at the California Institute of Technology (Caltech) and their colleagues have found evidence of ancient climate change on Mars caused by regular variation in the planet's tilt, or obliquity. On Earth, similar "astronomical forcing" of climate drives ice-age cycles.

12/03/2008

Potential for Large Earthquake Off the Coast of Sumatra Remains Large, Says Caltech-Led Team of Scientists

Lori Oliwenstein
The subduction zone that brought us the 2004 Sumatra-Andaman earthquake and tsunami is ripe for yet another large event, despite a sequence of quakes that occurred in the Mentawai Islands area in 2007, according to a group of earthquake researchers led by scientists from the Tectonics Observatory at the California Institute of Technology (Caltech).
11/11/2008

Caltech to ShakeOut in Earthquake Drill

Deborah Williams-Hedges
On November 13, millions of Southern Californians will drop, cover, and hold on as they participate in the Great Southern California ShakeOut-the largest earthquake drill in U.S. history.
10/20/2008

Caltech Geobiologists Discover Unique "Magnetic Death Star" Fossil

Kathy Svitil

An international team of scientists has discovered microscopic, magnetic fossils resembling spears and spindles, unlike anything previously seen, among sediment layers deposited during an ancient global-warming event along the Atlantic coastal plain of the United States.

07/21/2008

Caltech Scientists Offer New Explanation for Monsoon Development

Kathy Svitil
Geoscientists at the California Institute of Technology have come up with a new explanation for the formation of monsoons, proposing an overhaul of a theory about the cause of the seasonal pattern of heavy winds and rainfall that essentially had held firm for more than 300 years.
06/25/2008

Giant Impact Explains Mars Dichotomy

elisabeth nadin
The surface landscape of Mars, divided into lowlands in the north and highlands in the south, has long perplexed planetary scientists. Was it sculpted by several small impacts, via mantle convection in the planet's interior, or by one giant impact? Now scientists at the California Institute of Technology have shown through computer modeling that the Mars dichotomy, as the divided terrain has been termed, can indeed be explained by one giant impact early in the planet's history.
05/27/2008

Stress Buildup Precedes Large Sumatra Quakes

elisabeth nadin
The island of Sumatra, Indonesia, has shaken many times with powerful earthquakes since the one that wrought the infamous 2004 Indian Ocean tsunami. Now, scientists from the California Institute of Technology and the Indonesian Institute of Sciences are harnessing information from these and earlier quakes to determine where the next ones will likely occur, and how big they will be.
05/09/2008

Partnerships of Deep-Sea Methane Scavengers Revealed

elisabeth nadin
The sea floor off the coast of Eureka, California, is home to a diverse assemblage of microbes that scavenge methane from cold deep-sea vents. Researchers at the California Institute of Technology have developed a technique to directly capture these cells, lending insight into the diverse symbiotic partnerships that evolved among different species in an extreme environment.
04/15/2008

Caltech Creates New Center to Study the Global Environment

Jill Perry
To address the complex issue of global climate change from a wide range of disciplines, Ronald and Maxine Linde have established an $18 million endowment for the California Institute of Technology to create the Ronald and Maxine Linde Center for Global Environmental Science, uniting faculty from chemistry, engineering, geology, environmental science, and other fields.
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