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Science

Tuesday

Environment

Team Hunts Deadly 'Ghost Nets' in the Pacific

Every year high seas fishing boats lose and abandon fishing nets that can be miles long. These so-called ghost nets keep on killing, sweeping up fish, turtles, seabirds and whales. Now a team of American scientists says it has learned to track their movements throughout the Pacific Ocean.

Team Hunts Deadly 'Ghost Nets' in the Pacific

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Monday

Research News

Sweating the Details on Why Mosquitoes Bug Us

Research shows that certain chemicals our bodies produce are particularly attractive to bugs. Diet appears to play a role, and lactic acid, a byproduct of exercise, is a sure bug draw. The findings may hold the key to more effective mosquito traps.

Sweating the Details on Why Mosquitoes Bug Us

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CDC Officials Endorse Two Anti-Mosquito Chemicals

In addition to DEET, health authorities are recommending two more chemicals for use as mosquito repellents: picaridin and oil of lemon eucalyptus. The main object is to address the dangers of West Nile virus and other disease threats. But most Americans still won't use repellents.

CDC Officials Endorse Two Anti-Mosquito Chemicals

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Opinion

This I Believe

Science Nourishes the Mind and the Soul

Physicist Brian Greene believes that in unraveling the mysteries of the universe, we can find an appreciation for our own place in the cosmos and be inspired by the drama of exploration and discovery.

Science Nourishes the Mind and the Soul

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Saturday

Opinion

Historical Archives

An Ideal of Service to Our Fellow Man

From 1954, Nobel Prize-winning physicist Albert Einstein finds beauty in life's mysteries, and says the fate of mankind depends on individuals choosing public service over private gain.

Listen to Robert Krulwich Read Einstein's Essay

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Politics

Scientific Paper Pulled over Terrorism Concerns

A scientific paper about the food supply has been withdrawn for fear that it might aid terrorists. It suggests that tampering with the milk supply by introducing botulism could kill large numbers of people.

Scientific Paper Pulled over Terrorism Concerns

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Stem-Cell Debate Hits Close to Home on Hill

Many members of Congress had a personal stake in the past week's debate over federal funding for stem-cell research: someone near or dear is affected by a disease which such research might help cure.

Stem-Cell Debate Hits Close to Home on Hill

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Opinion

Theory vs. Hypothesis in Science

Commentator Ruth Levy Guyer explains the difference between theory and hypothesis in science. And she muses on why the theory of evolution... and Darwin himself... have engendered so much resistance over the ages.

Theory vs. Hypothesis in Science

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Research News

Darwinian Theory on a Molecular Level

How has molecular biology enhanced our understanding of Darwin's theory of natural selection? Biochemist Lynn Helena Caporale of Columbia University, author of Darwin in the Genome: Molecular Strategies in Biological Evolution, says that examining genomes of fossils and organisms across ages helps scientists see relationships between them.

Darwinian Theory on a Molecular Level

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Friday

Environment

Unlikely Ally in Fight to Save La.'s Cypress Trees

The only thing stopping chainsaws from cutting down cypress trees in Louisiana is the Army Corps of Engineers. It's not a desire to save the trees that is motivating it, but rather concerns about the roads that are built to reach them. The second of two reports.

Unlikely Ally in Fight to Save La.'s Cypress Trees

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Politics

First Bush Veto on Horizon?

Not since the early years of the republic has a president been in office as long as President George W. Bush without vetoing even one bill. But this remarkable record of collaboration between the branches may be at its end with the issue of stem cell research winning favor in Congress.

First Bush Veto on Horizon?

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FDA Probes Link Between Viagra, Blindness

There are new concerns involving the erectile dysfunction drug Viagra -- the U.S. Food and Drug Administration on Friday announced an investigation over possible links between the popular drug and blindness among diabetics and those suffering heart disease. Alex Chadwick speaks with Dr. John Kerrison, assistant professor of ophthalmology, neurology and neurosurgery at the Johns Hopkins Hospital in Baltimore, Md., about the new safety concerns.

FDA Probes Link Between Viagra, Blindness

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Thursday

Environment

Wildflower Thought Extinct Rediscovered in Calif.

Naturalists have rediscovered a tiny, pink wildflower that had been considered extinct for nearly 70 years. A Mount Diablo buckwheat flower was recently found by a University of California graduate student in a California state park.

Wildflower Thought Extinct Rediscovered in Calif.

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Environment

Arsenic Eating Microbe Discovered

There's a lake in California that's so chemically nasty that seemingly nothing could live there, except something that loves arsenic. Researchers have discovered a microbe there that feasts on the toxic stuff.

Arsenic Eating Microbe Discovered

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Environment

Battle Brews over Louisiana's Cypress Trees

Once a century, the cypress trees of Louisiana's swamps become large enough to harvest. Now is the time. Loggers, landowners and mill operators are itching to get the trees to market. But some scientists worry that harvesting the majestic trees could destroy a fragile ecosystem.

Battle Brews over Louisiana's Cypress Trees

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