Earth
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Earth
Mass movement
Two satellites designed to note small changes in Earth's gravitational field detected effects of the magnitude 9.3 earthquake that occurred west of Sumatra on Dec. 26, 2004.
By Sid Perkins -
Earth
Gunning for the Gut: Tiny particles might fight invasive zebra mussels
By modifying a technique used to flavor foods, researchers have made a substance that poisons the zebra mussel.
By Ben Harder -
Earth
Estimating a temblor’s strength on the fly
New analyses of ground motions caused by large earthquakes suggest that it may be possible to estimate the full magnitude of such quakes immediately after they start rumbling.
By Sid Perkins -
Earth
Beyond the ABC’s: North Atlantic posts record hurricane season
The 2005 hurricane season in the North Atlantic shattered a number of records, including several that were decades old.
By Sid Perkins -
Earth
Satellite makes finest map yet of Antarctica
Using data gathered by a satellite launched almost 3 years ago, scientists have assembled the most comprehensive high-resolution map of Antarctica that's ever been made.
By Sid Perkins -
Earth
Where steel-belted radials go to die
A new technique for analyzing satellite images may enable researchers to easily identify sites where large numbers of used tires have been dumped.
By Sid Perkins -
Earth
Ozone hole might not recover until the year 2065
The ozone-free zone that develops high in the atmosphere over Antarctica each summer as the result of the presence of chlorine- and bromine-containing chemicals may not heal until 15 years later than previously projected.
By Sid Perkins -
Earth
Lab tests hint at where xenon hides out
Results of recent experiments in which scientists squeezed a mixture of xenon and powdered quartz at high temperatures and pressures may explain why the gas is found at relatively low concentrations in the atmosphere.
By Sid Perkins -
Earth
TB Dilemma: Badger refugees complicate culling
Two new analyses bring an ironic twist to the heated debate over whether badgers in Britain should be killed to prevent them from spreading tuberculosis among cattle.
By Susan Milius -
Earth
Glacial Change: Greenland’s ice loss doubled in 2005
A host of observations suggests that Greenland's ice sheet diminished this year at a rate more than twice that seen just a few years ago.
By Sid Perkins -
Earth
Microbe polishes off pollutant
Researchers have determined how long a pesticide residue would remain in the environment if the microbe Pseudomonas pavonaceae didn't metabolize it.
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Earth
Changes in the Air
Changes in the atmospheric concentration of oxygen through geologic time, some gradual and some drastic, have strongly shaped evolution among many types of creatures.
By Sid Perkins