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Nell Greenfieldboyce

Nell Greenfieldboyce appears in the following:

When Did Humans Start Shaping Earth's Fate? An Epoch Debate

Monday, April 06, 2015

Some scientists suggest calling the era we live in the Anthropocene, to denote the time when humans came to dominate Earth's fate. But did it start with farming, the atom bomb or other event?

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Ferguson Activists Hope That Momentum Sparks A National Movement

Monday, April 06, 2015

Leaders of what some call a new civil rights struggle say the protests must lead to long-term strategies. The goal is to sustain a national movement and to get past challenging obstacles.

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NASA To Study A Twin In Space And His Brother On Earth

Friday, March 27, 2015

During astronaut Scott Kelly's year in space, scientists will compare his physiology with that of his twin brother, Mark, to study the effect of prolonged space flight on the human body.

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Scientists Discover A New Form Of Ice — It's Square

Wednesday, March 25, 2015

Researchers were surprised by what they found when they sandwiched a drop of water between two layers of an unusual two-dimensional material called graphene.

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Why Some Mushrooms Glow In The Dark

Saturday, March 21, 2015

Scientists outfitted some fake fungi with LEDs and put them in a Brazilian forest to test their theory that light, not some funky mushroom fragrance, was luring bugs.

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Are Humans Really Headed To Mars Anytime Soon?

Tuesday, March 17, 2015

Public passion is all well and good, but it will take more than big talk to get to Mars by 2025, space specialists say. Even several rockets' worth of cash won't easily solve the technical challenges.

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Moon River? No, It's An Ocean On One Of Jupiter's Moons!

Thursday, March 12, 2015

Scientists announced in a NASA teleconference that the biggest moon in our solar system has a salty ocean hidden below its icy surface.

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Just A Bit Of DNA Helps Explain Humans' Big Brains

Thursday, February 19, 2015

Scientists have found some human DNA that, when added to mice, makes their brains bigger. But as DNA research into human brains goes forward, are there ethical lines we shouldn't cross?

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Scientific Pros Weigh The Cons Of Messing With Earth's Thermostat

Tuesday, February 10, 2015

Studying techniques for engineering our way out of climate change would be helpful — and not the same as actually trying them, says a panel convened by the National Research Council.

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Hunting For Big Planets Far Beyond Pluto May Soon Be Easier

Monday, February 02, 2015

Construction is starting in Chile on a new sort of telescope. One aim is to survey huge swaths of sky for faint signals of a "Planet X" that may be lurking on the farthest edges of our solar system.

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DNA Blood Test Gives Women A New Option For Prenatal Screening

Monday, January 26, 2015

A simple blood test can analyze bits of fetal DNA leaked in the mother's bloodstream. It's less risky than invasive alternatives like amniocentesis, but it doesn't tell as much about fetal health.

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Maybe Early Humans Weren't The First To Get A Good Grip

Thursday, January 22, 2015

The opposable thumb you use to hold a pencil was long thought to be a defining aspect of humans. But an analysis of finger bones suggests stone tool use by pre-humans — perhaps 3 million years ago.

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Highflying Geese Save Energy By Swooping Like A Roller Coaster

Thursday, January 15, 2015

They could shoot up to 24,000 feet and maintain that altitude in a long-distance migration across the Himalayas. But it's more efficient for bar-headed geese to soar and dive, scientists find.

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How A Position Of Power Can Change Your Voice

Monday, January 05, 2015

Once you become the boss, it's likely that you'll start to speak quite differently. The pitch, resonance and intensity of your speech change in ways that listeners can detect as signs of power.

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Flu Vaccines Still Helpful Even When The Strain Is Different

Friday, January 02, 2015

The influenza season is under way and experts at the Centers for Disease Control and Prevention warn it may be particularly severe. We have an update on the flu and what you can do to protect yourself.

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These Froggies Went A Courtin' And Gave Birth To Live Tadpoles

Thursday, January 01, 2015

Who needs eggs? Scientists have discovered an unusual frog species that gives birth to live tadpoles.

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When Humans Quit Hunting And Gathering, Their Bones Got Wimpy

Monday, December 22, 2014

Humans have lighter bones than other primates, and that change happened a lot later than anthropologists had thought. Blame our sedentary ways after our ancestors took up farming.

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NIH Allows Restart Of MERS Research That Had Been Questioned

Thursday, December 18, 2014

The National Institutes of Health has approved requests for waivers from a moratorium on experiments that aim to make the virus that causes Middle East respiratory syndrome more infectious in mice.

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Worries About Unusual Botulinum Toxin Prove Unfounded

Thursday, December 18, 2014

A previously unknown form of botulinum toxin thought to be resistant to standard treatment raised public health concerns. Subsequent research has allayed those fears.

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Pakistan Keeps On Vaccinating Despite Tough Terrain And Terror Threat

Thursday, December 18, 2014

Just getting a measles vaccine to a child in Pakistan was once an impossible dream. Despite many obstacles, health workers have made great progress in stopping infectious diseases.

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