Earth
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Earth
This pollutant fights lupus
A hormone-mimicking pollutant that leaches out of some plastics appears to fight lupus.
By Janet Raloff -
Earth
When testosterone gets down and dirty
Testosterone excreted by livestock can pass through soils, which may explain new findings of fish-altering hormonal activity in water downstream of cattle feedlots.
By Janet Raloff -
Earth
Infrasonic Symphony
Scientists are eavesdropping on volcanoes, avalanches, earthquakes, and meteorites to discern these phenomena's infrasound signatures and see what new information infrasound might reveal.
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Earth
Blasts from the Past: Orbiting radar spots old nuclear-test sites
A technique that analyzes satellite images to detect subtle ground motions often can perceive subsidence over underground nuclear-test sites, sometimes even if those tests occurred decades ago.
By Sid Perkins -
Earth
My Own Private Bad-Air Day: Outdoor data underrate pollutant exposure
Most people breathe in substantially more organic contaminants than airborne concentrations of such substances in their homes and communities would suggest.
By Ben Harder -
Earth
New technique dates glaze on desert rocks
Scientists have developed a quick, easy, portable, and nondestructive way to determine the age of desert varnish, the mysterious dark coating that slowly develops on rocks in many arid regions of the world.
By Sid Perkins -
Earth
Newfound fault may explain quakes
Tsunami simulations suggest that a newly discovered fault zone beneath the Atlantic Ocean could have released most of the seismic energy from three earthquakes that destroyed Lisbon, Portugal, on the morning of Nov. 1, 1755.
By Sid Perkins -
Earth
Alaska shook, mountains spoke
Small pulses in atmospheric pressure detected in Fairbanks soon after the magnitude 7.9 Denali quake on Nov. 3, 2002, suggest that the temblor literally moved mountains.
By Sid Perkins -
Earth
Earth sometimes shivers beneath thick blankets of ice
New analyses of old seismic data have distinguished the ground motions spawned by a previously unrecognized type of earthquake—quakes created by brief surges of massive glaciers.
By Sid Perkins -
Earth
Thin Skin
Desert pavement, a delicate veneer of stones that covers the surface of up to 50 percent of the world's arid lands, is susceptible to being damaged by everything from multi-ton tanks to careless footsteps, and the resulting scars can take thousands of years to mend on their own.
By Sid Perkins -
Earth
Seasonal Weather
The Aboriginal people of Australia had their own way of defining the seasons, based on local weather patterns. Australia’s Bureau of Meteorology has created a Web site that illustrates several of these seasonal weather calendars, established thousands of years ago. Unlike the European and American spring, summer, autumn, and winter, the indigenous versions often include […]
By Science News -
Earth
Seasonal Weather
The Aboriginal people of Australia had their own way of defining the seasons, based on local weather patterns. Australia’s Bureau of Meteorology has created a Web site that illustrates several of these seasonal weather calendars, established thousands of years ago. Unlike the European and American spring, summer, autumn, and winter, the indigenous versions often include […]
By Science News