Taxonomy term

september 2014

The Bay Area's next 'big one' could strike as a series of quakes

Californians are bracing for when the San Andreas Fault unleashes the next “big one,” but a new study looking at the paleoseismic history of the San Francisco Bay Area suggests that accumulated stress could also be released in a series of moderate to large quakes on satellite faults, rather than by a single great event on the San Andreas.
 

14 Sep 2014

Red Planet Roundup: September 2014

As Curiosity and Opportunity rove around Mars, the Mars Reconnaissance Orbiter (MRO), Mars Express and Mars Odyssey orbit above, and scientists on Earth study the Red Planet from afar, new findings are announced almost weekly. Here are a few of the latest updates.

12 Sep 2014

All the world's glaciers in one global inventory

Earth is home to about 198,000 glaciers, which have now all been mapped. The first global inventory of alpine glaciers, including their locations, extents, volumes and geographic outlines, has been assembled — a feat climate scientists and glaciologists hope will allow for better monitoring of the world’s ice.
 

12 Sep 2014

New off-the-shelf aerial imaging technique trumps lidar

In recent years lidar has become the gold standard for people looking to make high-resolution aerial maps — from archaeologists studying ruins hidden beneath jungle canopies to engineers monitoring dams and levees. Although the technology has many useful applications, it’s often prohibitively expensive. Now, a new technique using an off-the-shelf digital camera is offering an inexpensive alternative for collecting 3-D aerial data.

11 Sep 2014

Twinkle, twinkle new little star

What’s red, sparkly and far from home? Not Dorothy’s shoes, but a Thorne-Zytkow object (TZO), a type of hybrid star theorized since 1975 to exist but not observed until now.
 

10 Sep 2014

New climate record challenges ideas about recent glaciations

Predicting how a changing climate and rising sea levels might impact humans in the future requires an understanding of how Earth has changed in the past. So scientists are continually seeking more and better data to help illuminate earlier conditions.
 

08 Sep 2014

Ancient shark jaws resemble those of modern fish

Sharks are thought to have one of the most consistent body plans in the animal kingdom; the formidable predators seem to have remained roughly the same for more than 400 million years. But a new study, published in Nature, suggests that sharks are not the unchanging, “living fossils” that paleontologists once thought.
 

07 Sep 2014

Minimizing the risk

According to the Centers for Disease Control and Prevention, for those working in the field or living in the endemic area, it is very difficult to avoid exposure to the Coccidioides fungus, but there are precautions that can be taken.

07 Sep 2014

Valley Fever an occupational hazard for geoscientists

Geoscientists should take precautions against contracting Valley Fever — a sometimes-fatal infection with no known cure and no vaccine that is caused by a soilborne fungus, said James A. Jacobs, a California-based consulting hydrogeologist, at the annual meeting of the American Institute of Professional Geologists last year.
 

07 Sep 2014

Valley fever's deadly history

The earliest recorded case of coccidioidomycosis was documented in Argentina in 1892, when a soldier was diagnosed with what was first thought to be an infection of coccidia — parasitic protozoans, like cryptosporidium and toxoplasma, that infect the intestines of animals, including chickens, cows, dogs and cats. The soldier lived with the disease for 11 years, during which time his doctors realized it was not caused by a protozoa but by a fungus. The name, however, stuck.
 

07 Sep 2014

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