Past Articles by Nell Greenfieldboyce
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Sand From Fracking Could Pose Lung Disease Risk To Workers The sand is pumped underground along with water and other chemicals to extract oil and natural gas trapped deep in rock. But researchers found that air samples taken at some drilling sites contained high enough levels of very fine silica particles to be dangerous to workers. |
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Sand From Fracking Could Pose Lung Disease Risk To Workers The sand is pumped underground along with water and other chemicals to extract oil and natural gas trapped deep in rock. But researchers found that air samples taken at some drilling sites contained high enough levels of very fine silica particles to be dangerous to workers. |
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Sand From Fracking Could Pose Lung Disease Risk To Workers The sand is pumped underground along with water and other chemicals to extract oil and natural gas trapped deep in rock. But researchers found that air samples taken at some drilling sites contained high enough levels of very fine silica particles to be dangerous to workers. |
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First Space Tourist Sets Sights On A Mars Mission The 72-year-old businessman who flew to the International Space Station in 2001 now wants to take advantage of planetary alignment in January 2018 that would allow for people to fly to Mars, loop around the planet, and return to Earth. Dennis Tito says he won't go, but the plan is to send a man and a woman on the 501-day trip. |
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Feds Set New Rules For Controversial Bird Flu Research In early 2012, experiments that made H5N1 bird flu more contagious caused an uproar. People feared that mutant viruses could escape the lab and kill people. To prevent a repeat, the government has unveiled a policy describing how scientists should study dangerous pathogens and toxins. |
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Feds Set New Rules For Controversial Bird Flu Research In early 2012, experiments that made H5N1 bird flu more contagious caused an uproar. People feared that mutant viruses could escape the lab and kill people. To prevent a repeat, the government has unveiled a policy describing how scientists should study dangerous pathogens and toxins. |
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Highly Anticipated Asteroid Upstaged, By A Meteor The much-anticipated close flyby of a large asteroid was upstaged Friday when a meteor unexpectedly streaked across the sky over Russia. The ensuing explosion sent window shards flying and injured hundreds of people. |
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Close Shave: Asteroid To Buzz Earth Next Week At its closest approach, the office building-sized asteroid will be only about 17,200 miles above the surface of our planet. That's far nearer to us than the moon, and even closer than some weather and communications satellites. Some people think this near miss should serve as a wake-up call. |
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Close Shave: Asteroid To Buzz Earth Next Week At its closest approach, the office building-sized asteroid will be only about 17,200 miles above the surface of our planet. That's far nearer to us than the moon, and even closer than some weather and communications satellites. Some people think this near miss should serve as a wake-up call. |
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Silica Rule Changes Delayed While Workers Face Health Risks   Regulations to restrict the amount of silica dust that workers can inhale was set decades ago, and workplace safety experts say that limit needs to be cut in half. A proposal for new rules was sent to the White House Office of Management and Budget for a 90-day review, but almost two years later, it's still under review. |
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Silica Rule Changes Delayed While Workers Face Health Risks Regulations to restrict the amount of silica dust that workers can inhale were set decades ago, and workplace safety experts say that limit needs to be cut in half. A proposal for new rules was sent to the White House Office of Management and Budget for a 90-day review, but almost two years later, it's still under review. |
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Silica Rule Changes Delayed While Workers Face Health Risks Regulations to restrict the amount of silica dust that workers can inhale were set decades ago, and workplace safety experts say that limit needs to be cut in half. A proposal for new rules was sent to the White House Office of Management and Budget for a 90-day review, but almost two years later, it's still under review. |
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Scientists Put An End To Moratorium On Bird Flu Research After researchers created versions of the bird flu virus that could spread more easily, critics began to worry that the work could spawn a pandemic if a virus escaped from the lab. After halting their work for more than a year, scientists now say the benefits outweigh the risks, and they are set to restart their experiments. |
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Scientists Put An End To Moratorium On Bird Flu Research After researchers created versions of the bird flu virus that could spread more easily, critics began to worry that the work could spawn a pandemic if a virus escaped from the lab. After halting their work for more than a year, scientists now say the benefits outweigh the risks, and they are set to restart their experiments. |
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Scientists Put An End To Moratorium On Bird Flu Research After researchers created versions of the bird flu virus that could spread more easily, critics began to worry that the work could spawn a pandemic if a virus escaped from the lab. After halting their work for more than a year, scientists now say the benefits outweigh the risks, and they are set to restart their experiments. |
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Scientists Put An End To Moratorium On Bird Flu Research After researchers created versions of the bird flu virus that could spread more easily, critics began to worry that the work could spawn a pandemic if a virus escaped from the lab. After halting their work for more than a year, scientists now say the benefits outweigh the risks, and they are set to restart their experiments. |
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Rules Would Retire Most Research Chimps An NIH working group recommends that most of the agency's 360 research chimpanzees be sent to a sanctuary — a non-laboratory setting where chimps can live more natural lives. But even if the NIH accepts the recommendations, putting them into effect won't be easy. |
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Rules Would Retire Most Research Chimps An NIH working group recommends that most of the agency's 360 research chimpanzees be sent to a sanctuary — a non-laboratory setting where chimps can live more natural lives. But even if the NIH accepts the recommendations, putting them into effect won't be easy. |
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Rules Would Retire Most Research Chimps An NIH working group recommends that most of the agency's 360 research chimpanzees be sent to a sanctuary — a non-laboratory setting where chimps can live more natural lives. But even if the NIH accepts the recommendations, putting them into effect won't be easy. |
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Figuring How To Pay For (Chimp) Retirement The National Institutes of Health owns or supports almost 700 chimps. But the question of where they go when no longer needed for research is a thorny one: NIH money to support retired chimps in sanctuaries has been limited by Congress. |
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Figuring How To Pay For (Chimp) Retirement The National Institutes of Health owns or supports almost 700 chimps. But the question of where they go when no longer needed for research is a thorny one: NIH money to support retired chimps in sanctuaries has been limited by Congress. |
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You Can't See It, But You'll Be A Different Person In 10 Years People generally fail to appreciate how much their personality and values will change in the years ahead — even though they recognize that they have changed in the past, according to fresh research. |
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You Can't See It, But You'll Be A Different Person In 10 Years People generally fail to appreciate how much their personality and values will change in the years ahead — even though they recognize that they have changed in the past, according to fresh research. |
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You Can't See It, But You'll Be A Different Person In 10 Years People generally fail to appreciate how much their personality and values will change in the years ahead — even though they recognize that they have changed in the past, according to fresh research. |
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Study: People Know They Will Change, But Underestimate How Much New research in the journal Science suggests that people aren't aware of how much they will change in the next decade of their lives. Teenagers, middle-aged people, and older people all recognize that they have changed a lot in the past, but all think they will change relatively little in the future. People at all ages think that the pace of personal change has slowed to a crawl and they have recently become the people they will remain. |
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Research Moratoriums And Recipes For Superbugs: Bird Flu In 2012 When scientists figured out how to make the deadly H5N1 virus more contagious, a debate ignited about whether to publish the research and do more experiments. Over the past year, scientists published the contentious work, but they still can't agree on the field's future. |
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Research Moratoriums And Recipes For Superbugs: Bird Flu In 2012 When scientists figured out how to make the deadly H5N1 virus more contagious, a debate ignited about whether to publish the research and do more experiments. Over the past year, scientists published the contentious work, but they still can't agree on the field's future. |
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Research Moratoriums And Recipes For Superbugs: Bird Flu In 2012 When scientists figured out how to make the deadly H5N1 virus more contagious, a debate ignited about whether to publish the research and do more experiments. Over the past year, scientists published the contentious work, but they still can't agree on the field's future. |
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Controversial Bird Flu Work To Resume Soon Scientists recently sparked controversy when they made dangerous new forms of bird flu. The National Institutes of Health is about to put in place a new system for reviewing this kind of work in the future. |
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Controversial Bird Flu Work To Resume Soon Scientists recently sparked controversy when they made dangerous new forms of bird flu. The National Institutes of Health is about to put in place a new system for reviewing this kind of work in the future. |
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NIH Revisits Debate On Controversial Bird Flu Research On Tuesday, the National Institutes of Health in Maryland is holding a second day of talks about whether and how to continue funding some controversial scientific experiments. Back in January, virologists agreed to temporarily stop research that was creating new forms of bird flu, because critics argued that the work was too dangerous. |
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NIH Revisits Debate On Controversial Bird Flu Research On Tuesday, the National Institutes of Health in Maryland is holding a second day of talks about whether and how to continue funding some controversial scientific experiments. Back in January, virologists agreed to temporarily stop research that was creating new forms of bird flu, because critics argued that the work was too dangerous. |
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NIH Revisits Debate On Controversial Bird Flu Research On Tuesday, the National Institutes of Health in Maryland is holding a second day of talks about whether and how to continue funding some controversial scientific experiments. Back in January, virologists agreed to temporarily stop research that was creating new forms of bird flu, because critics argued that the work was too dangerous. |
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50 Years After First Interplanetary Probe, NASA Looks To Future Mariner 2's 1962 mission to Venus was the first time any spacecraft had gone to another planet. Before the mission, very little was known about the planets, and much of what was believed to be true turned out to be wrong. |
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50 Years After First Interplanetary Probe, NASA Looks To Future Mariner 2's 1962 mission to Venus was the first time any spacecraft had gone to another planet. Before the mission, very little was known about the planets, and much of what was believed to be true turned out to be wrong. |
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Is Another Moon Mission Written In The Stars? It's been 40 years since NASA launched Apollo 17, its final human mission to the moon. The commander of that mission says he'd love to give up his claim to fame as "the last man on the moon" but concedes that it probably won't happen in his lifetime. And future trips might be run by companies in the private sector. |
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Victory Or Defeat? Emotions Aren't All In The Face Athletes may show intense emotion in their face, but you'll need more than that to tell if they won or lost. A new study suggests people don't read extreme facial expressions to judge how a person is feeling. |
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Victory Or Defeat? Emotions Aren't All In The Face Athletes may show intense emotion in their face, but you'll need more than that to tell if they won or lost. A new study suggests people don't read extreme facial expressions to judge how a person is feeling. |
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Experiments That Keep Going And Going And Going Some scientific research can't be completed in days or months — projects can take years, or even decades or centuries. This poses a challenge for scientists who must make plans for experiments that often outlive the experimenter. |
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Experiments That Keep Going And Going And Going Some scientific research can't be completed in days or months — projects can take years, or even decades or centuries. This poses a challenge for scientists who must make plans for experiments that often outlive the experimenter. |
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Ingredients For A Homestyle Thanksgiving, 200 Miles Above The Earth Candied yams with a touch of marshmallow cream are what the astronauts on the International Space Station are looking forward to eating for their Thanksgiving feast today. That and a little irradiated smoked turkey, courtesy of NASA. |
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Ingredients For A Homestyle Thanksgiving, 200 Miles Above The Earth Candied yams with a touch of marshmallow cream are what the astronauts on the International Space Station are looking forward to eating for their Thanksgiving feast today. That and a little irradiated smoked turkey, courtesy of NASA. |
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Ingredients For A Homestyle Thanksgiving, 200 Miles Above The Earth Candied yams with a touch of marshmallow cream are what the astronauts on the International Space Station are looking forward to eating for their Thanksgiving feast today. That and a little irradiated smoked turkey, courtesy of NASA. |
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Ultrasound often catches fetuses opening their mouths, but whether they're really yawning or not has been up for debate. Now, with some fancy ultrasound techniques, scientists have show that babies do indeed yawn in the womb. |
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Ultrasound often catches fetuses opening their mouths, but whether they're really yawning or not has been up for debate. Now, with some fancy ultrasound techniques, scientists have show that babies do indeed yawn in the womb. |
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Ultrasound often catches fetuses opening their mouths, but whether they're really yawning or not has been up for debate. Now, with some fancy ultrasound techniques, scientists have show that babies do indeed yawn in the womb. |
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Move Over, Parrot: Elephant Mimics Trainer At Zoo Scientists say an Asian elephant at a South Korean zoo can imitate human speech, uttering five Korean words that are readily understood. "This is not the kind of sound that Asian elephants normally make, and it's a dead-on match of the speech of his trainers," a researcher says. |
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Scientist Find Nearest Planet Outside Solar System Researchers have found a planet orbiting a neighboring star that's similar to our sun. Alpha Centauri B is a staple of science fiction, because the star is so close to our own solar system. Now scientists say they have evidence that the star is orbited by at least one planet and where there's one, there's probably more. |
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Feds Seek Comments On Bird Flu Safety Fears The Department of Health and Human Services' request for comments comes after some have criticized officials for not having enough public discussion about the controversial H5N1 viruses, which were created in the lab to find out if they could mutate and start a pandemic in people. |
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Two Americans Share Nobel Prize In Chemistry Two Americans have won the 2012 Nobel Prize in Chemistry. Robert Lefkowitz and Brian Koblika were awarded the prize for their work on protein receptors that tell cells what's going on around the human body. Their research has allowed drug makers to develop medication with fewer side effects. The pair with share the $1.2 million award. |
