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News tagged with sierra

Giant Sequoias Yield Longest Fire History from Tree Rings

(PhysOrg.com) -- California's western Sierra Nevada had more frequent fires between 800 and 1300 than at any time in the past 3,000 years, according to a new study led by Thomas W. Swetnam, director of UA's ...

Space & Earth / Environment

created Mar 17, 2010 | popularity 4.9 / 5 (9) | comments 22 | with audio podcast

SpaceX poised for high-stakes space station launch

SpaceX on Saturday aims to become the first private company to send its own cargo ship to the International Space Station, a feat that only a handful of world governments have pulled off.

Space & Earth / Space Exploration

created May 17, 2012 | popularity 5 / 5 (5) | comments 5

NASA researchers search for meteorite fragments in a zeppelin

It's not every day that NASA descends on your backyard, hunting for clues to extraterrestrial life.

Space & Earth / Space Exploration

created May 08, 2012 | popularity 5 / 5 (1) | comments 0

Blood samples show deadly frog fungus at work in the wild

The fungal infection that has killed a record number of amphibians worldwide leads to deadly dehydration in frogs in the wild, according to a new study by University of California, Berkeley and San Francisco State University ...

Biology / Plants & Animals

created Apr 25, 2012 | popularity not rated yet | comments 0 | with audio podcast

Common North American frog identified as carrier of deadly amphibian disease

Known for its distinctive "ribbit" call, the noisy Pacific chorus frog is a potent carrier of a deadly amphibian disease, according to new research published today in the journal PLoS ONE. Just how this c ...

Biology / Plants & Animals

created Mar 12, 2012 | popularity not rated yet | comments 1 | with audio podcast

Gene flow may help plants adapt to climate change

The traffic of genes among populations may help living things better adapt to climate change, especially when genes flow among groups most affected by warming, according to a UC Davis study of the Sierra Nevada ...

Biology / Plants & Animals

created Jun 28, 2011 | popularity 5 / 5 (1) | comments 0 | with audio podcast

Fox spit helped Forest Service confirm rare find

(PhysOrg.com) -- Three weeks ago, when U.S. Forest Service biologists thought they had found a supposedly extinct fox in the mountains of central California, they turned to UC Davis for confirmation.

Biology / Plants & Animals

created Sep 03, 2010 | popularity 4.6 / 5 (10) | comments 3 | with audio podcast

The Flight of Migrating Microbes

Every day, millions of microorganisms reach Spain from the Sahara Desert and the Sahel region - by flying.

Space & Earth / Earth Sciences

created Jul 30, 2010 | popularity 3.8 / 5 (6) | comments 0 | with audio podcast

New insights into how deadly amphibian disease spreads and kills

Scientists have unraveled the dynamics of a deadly disease that is wiping out amphibian populations across the globe.

Biology / Ecology

created May 10, 2010 | popularity 5 / 5 (2) | comments 0 | with audio podcast

New research suggests Sierra Nevadas older than previously thought

The Sierra Nevada mountain range reached its present height 50 million years ago -- 30 million years earlier than geologists once believed, according to a new study.

Space & Earth / Earth Sciences

created Jan 11, 2010 | popularity 4.5 / 5 (2) | comments 3

Fossil Leaves Depict Warm, High Sierra Nevada Mountains in Ancient Past

(PhysOrg.com) -- A team led by Yale University geologists has reconstructed the climate and elevation of California’s northern Sierra Nevada mountains using organic materials derived from ancient leaves and ...

Space & Earth / Earth Sciences

created Jan 06, 2010 | popularity 4.5 / 5 (8) | comments 8 | with audio podcast

Governments turn to cloud seeding to fight drought

(AP) -- On a mountaintop clearing in the Sierra Nevada stands a tall metal platform holding a crude furnace and a box of silver iodide solution that some scientists believe could help offer relief from searing ...

Space & Earth / Earth Sciences

created Dec 10, 2009 | popularity 2.3 / 5 (3) | comments 2

S.Leone elephants 'wiped out' by poachers: official

Poachers "wiped out" the entire elephant herd in Sierra Leone's only wildlife park, wildlife managers said Thursday after police said they had arrested a gang of 10 poachers.

Biology / Ecology

created Nov 26, 2009 | popularity 5 / 5 (7) | comments 6

Sierra Nevada birds move in response to warmer, wetter climate

(PhysOrg.com) -- If the climate is not quite right, birds will up and move rather than stick around and sweat it out, according to a new study led by biologists at the University of California, Berkeley.

Biology / Ecology

created Sep 14, 2009 | popularity 3 / 5 (2) | comments 0

Sir Richard Branson All Fired Up With Latest Rocket Motor Test

Virgin Galactic owned by Sir Richard Branson completed a successful test on May 28, 2009 of its hybrid nitrous oxide motor designed by Scaled Composites and a subcontractor Sierra Nevada Corporation. The ...

Space & Earth / Space Exploration

created May 31, 2009 | popularity 4.9 / 5 (15) | comments 16 weblog