Dunewatching, Martian style
Watching dunes drift
New pix from Mars show sand dunes on the move. Mars has been dry for 1.5 billion years; could massive erosion be due to wind? Yes, says a new report that tracked dunes with precise new images. Surprise: dunes move as fast on Mars as on Earth! More »
Denial of science, science of denial
Why do so many doubt evolution, warming?
Tobacco and cancer. CFCs and ozone. Vaccines and autism. And evolution through natural selection, acid rain and global warming. Why do the facts get lost in a cacophony of argument, falsehood and outright denial? A conference looks at why the media get taken for a ride, and how they can improve. More »
Science Teachers: Hip yourself to a great resource!
Teaching the science standards? Looking for extra-credit projects?
Cattle, wildlife: No real conflict?
Win-win result from Kenya test!
In African savannas, cattle graze the same grass as zebras, elephants and gazelles. Obviously, wildlife are stealing food from the mouths of cattle, and from the people who depend on cattle. But new data show that in the wet season, grazing wildlife actually benefit cattle! More »
In The News
Tracking fracking: U.S. proposes mandatory lists of chemicals
A high-pressure technique to break rocks caused an explosion of natural gas production -- and alarming reports of groundwater pollution. How does fracking work? Can it be done safely?
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Junior Seau kills himself; famed linebacker, 43, was second veteran NFL suicide in 2 months. Was it due to brain damage?
Impacts and concussions can cause long-lasting, even permanent brain damage. Millions of Americans have traumatic brain injuries. Could experimental techniques help mice and people?
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First time: Wild whooping cranes hatches in Wis. refuge!
Refuge is site of effort to use ultralight aircraft to guide crane chicks toward Florida wintering grounds. Dangers remain, but it's a step ahead for Americas' largest flying bird, once reduced to 21 animals.
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World Trade Center again tallest building in New York!
What did the losing World Trade designs look like? What is the significance of a city skyline?
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Mass murderer on trial in Norway. What explains these killings?
Why do mass killers pull the trigger? What are the warning signs of "rampage" shootings?
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