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San Francisco CA (UPI) Dec 15, 2004For nearly 50 years, Greenland's Jakobshavn glacier inched inexorably toward the sea at a stable and non-threatening rate. During the same time period, glaciers in Alaska, in Patagonia and Antarctica proceeded steadily at well-established rates. The polar ice cap that lay over most of the Arctic Ocean during winter remained essentially unbroken. Study Resolves Doubt About Origin Of Earth's Oldest Rocks 
Chicago IL (SPX) Dec 17, 2004Experiments led by Nicolas Dauphas of the University of Chicago and Chicago's Field Museum have validated some controversial rocks from Greenland as the potential site for the earliest evidence of life on Earth. |
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Spatial Scale Of High-Speed Flows In The Magnetotail
Paris, France (ESA) Dec 16, 2004High-speed flows of plasma, propagating from the magnetotail to the Earth at velocities higher than 300 kms-1, are the carriers of decisive amounts of mass, energy and magnetic flux. Published 7 may 2004, in Geophysical Research Letters, a statistical study based on multipoint measurements by the Cluster mission reveals, for the first time, their typical spatial scale. Satellites Plus Software Equal Best-Ever Mediterranean Heat Map 
Southampton, UK (SPX) Dec 16, 2004This ultra high-resolution sea surface temperature map of the Mediterranean could only have been made with satellites. Any equivalent ground-based map would need almost a million and a half thermometers placed into the water simultaneously, one for every two square kilometres of sea. Strange Ocean Wave Patterns Raise Questions About Beach Erosion 
San Francisco CA (SPX) Dec 14, 2004Engineers who were studying beach erosion got more than they bargained for recently when they discovered unexpected wave behavior in the water along an east coast shoreline. Diving For Life Under Antarctic Ice 
Moffett Field CA (SPX) Dec 16, 2004Dale Andersen is a biologist at McGill University, the SETI Institute and NASA Ames. His research focuses on Mars analogs, locations on Earth that resemble Mars in one or more ways. Major Climate Change Occurred 5,200 Years Ago: History Could Repeat Itself 
Columbus OH (SPX) Dec 16, 2004Glaciologist Lonnie Thompson worries that he may have found clues that show history repeating itself, and if he is right, the result could have important implications to modern society. Researchers Discover First Evidence Of Microbes Living In A Rock Glacier 
Arlington VA (SPX) Dec 15, 2004Scientists have discovered evidence of microbial activity in a rock glacier high above tree line in the Rocky Mountains, a barren environment previously thought to be devoid of life. Shutdown Of Circulation Pattern Could Be Disastrous: Researchers 
Champaign IL (SPX) Dec 15, 2004If global warming shuts down the thermohaline circulation in the North Atlantic Ocean, the result could be catastrophic climate change. The environmental effects, models indicate, depend upon whether the shutdown is reversible or irreversible. |
NASA Tracks Impact Of Trees And Insects On Carbon Dioxide Levels
Moffett Field CA (SPX) Dec 15, 2004Winds and changing climate converted parts of Oklahoma, Kansas, Colorado and Texas into a giant 'dust bowl' in the 1930s. In response, the 1937 'Shelterbelt Project' involved the planting of trees to reduce erosion and provide relief from the biting winds that blew soil from farms and drove people west to California. Research Points To New Theory Driving Evolutionary Changes 
Dallas TX (SPX) Dec 14, 2004Researchers at UT Southwestern Medical Center at Dallas have used canine DNA to identify a genetic mutation mechanism they believe is responsible for rapid evolutionary changes in the physical appearance of many species. Exploring Ocean Life And Color On The Internet 
Greeenbelt MD (SPX) Dec 15, 2004A new NASA Internet tool called "Giovanni" allows high school and college students and researchers to access and analyze satellite-derived ocean color data. Ocean color data provides students with information about ocean biology by looking at phytoplankton through changes in the color of the ocean surface. A Deep Sea Hydrocarbon Factory 
Minneapolis MN (SPX) Dec 13, 2004A team of University of Minnesota scientists has discovered how iron- and chromium-rich rocks can generate natural gas (methane) and related hydrocarbons when reacted with superheated fluids circulating deep beneath the floor of the Atlantic Ocean. Putting Earth In Rehab 
University Park PA (SPX) Dec 10, 2004The length of time necessary to recover from a mass extinction may seem like a problem from the past, but a team of Penn State researchers is investigating recovery from the second largest extinction in Earth's history at the end of the Ordovician 443 million years ago and sees some parallels to today's Earth. Deep Tremors Under San Andreas Fault Could Portend Earthquakes 
Berkeley CA (SPX) Dec 10, 2004University of California, Berkeley, seismologists have discovered mysterious tremors deep under the San Andreas Fault that may portend future earthquakes. What Have Scientists Learned Since Mount St. Helens Erupted 
Portland OR (SPX) Dec 09, 2004When Mount St. Helen's blew its top in 1980, Charlie Crisafulli was 22 years old and just beginning his career as a research ecologist. One of his first assignments: travel to Mount St. Helens 2 months after the historic eruption and study the aftermath. |
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