Nell Greenfieldboyce

Nell Greenfieldboyce appears in the following:

Earth Is Lit, And That's A Problem

Wednesday, November 22, 2017

Over the last five years, global light pollution has increased nearly 10 percent, a new study shows, The fastest rise occurred in developing nations.


Why Did The Passenger Pigeon Go Extinct? The Answer Might Lie In Their Toes

Thursday, November 16, 2017

Billions of these birds once flew over North America, but the last known passenger pigeon died in 1914. To try to figure out what happened, scientists analyzed DNA from the toes of birds in museums.


Scientists Say They've Found Hidden Space In Great Pyramid Of Giza

Thursday, November 02, 2017

Researchers used equipment that detects muons. Measuring the density of the tiny particles yielded an image of what's behind the pyramid walls with no damage to the ancient structure.


Trump's Nominee To Be The Next Head Of NASA Prepares For Senate Hearing

Tuesday, October 31, 2017

President Trump's pick for the next head of NASA, Rep. Jim Bridenstine, R-Okla., will have his Senate nomination hearing on Wednesday. He's been controversial because of his views on climate change.


Body Cam Study Shows No Effect On Police Use Of Force Or Citizen Complaints

Friday, October 20, 2017

That's the conclusion of a study performed as Washington, D.C., rolled out its huge program. The city has one of the largest forces in the country, with some 2,600 officers now wearing cameras.


Scientists Push To House More Lab Monkeys In Pairs

Tuesday, October 17, 2017

Enhancing a research monkey's life by housing it with a pal often doesn't hurt the study, says a researcher who's done it. In her own experience, she says, "it actually helped to improve the science."


Astronomers Strike Gravitational Gold In Colliding Neutron Stars

Monday, October 16, 2017

In an astonishing discovery, astronomers used gravitational waves to locate two neutron stars smashing together. The collision created 200 Earth masses of pure gold, along with other elements.


Pumas Are Not Such Loners After All

Wednesday, October 11, 2017

Researchers are startled to find that pumas, also called mountain lions, meet up quite frequently with their fellow big cats — perhaps to share an elk carcass.


Light Pollution Can Impact Nocturnal Bird Migration

Thursday, October 05, 2017

A new study of how birds react to the annual light tribute to September 11th in New York City provides compelling evidence for how artificial light can disorient large numbers of migrating birds.


Nobel Prize In Chemistry Awarded To Researchers Who Improved 'Imaging Of Biomolecules'

Wednesday, October 04, 2017

They were honored for developing a new way to generate 3-D images of biological molecules. Researchers are using the technique to study everything from the Zika virus to Alzheimer's disease.


Chemistry Nobel Prize Awarded For Advances In Cell Imaging

Wednesday, October 04, 2017

The 2017 Nobel Prize in chemistry has been awarded to researchers Jacques Dubochet, Joachim Frank and Richard Henderson for their work to develop cryo-electron microscopy.


It's Like An 'Electric-Fence Sensation,' Says Scientist Who Let An Eel Shock His Arm

Thursday, September 14, 2017

A neurobiologist noticed something strange whenever he tried to fish out electric eels in his lab using a net with a metal rim and handle. So he decided to roll up his sleeves and investigate.


Go See It, Eclipse Chasers Urge. 'Your First Time Is Always Special'

Tuesday, August 08, 2017

A small number of passionate "shadow lovers" roam the world to be at exactly the right place when the moon blots out the sun. One man has seen 33 — and calls each "one of the top events of my life."


Scientists Prepare For 'The Most Beautiful Thing You Can See In The Sky'

Monday, August 07, 2017

You'd think that after hundreds of years of watching total solar eclipses, scientists would know all they'd need to about that particular phenomenon. You'd be wrong.


Planning To Watch The Eclipse? Here's What You Need To Protect Your Eyes

Tuesday, August 01, 2017

A total solar eclipse is one of the most magnificent sights you can ever see. But you need the right kind of eye protection, and some of what's being sold out there isn't safe.


GOP Effort To Make Environmental Science 'Transparent' Worries Scientists

Thursday, July 20, 2017

There's a push in Congress to rewrite how science gets used in regulation — and that has researchers worried. The industry-backed bill would let business nitpick raw data and ignore valid results.


'One Of A Kind' Collection Of Animal Eyeballs Aids Research On Vision Problems

Sunday, July 02, 2017

Most of the 56,000 eyes sent to the little lab in Wisconsin come from vets who want help diagnosing dogs, cats and horses. But the repository also has eyes from sloths, elephant seals and dragonflies.


Moonwalkers' Apollo 11 Capsule Gets Needed Primping For Its Star Turn On Earth

Monday, June 26, 2017

In 1969 it was the orbiting home and refuge for the first astronauts who walked on the moon. Today, after decades on display in a Smithsonian museum, the module is being restored for a national tour.


A Few Genetic Tweaks To Chinese Bird Flu Virus Could Fuel A Human Pandemic

Thursday, June 15, 2017

Three genetic changes could be enough to make a bird flu strain that's already killing some people in China highly contagious. Are experiments with a deliberately mutated version too risky?


Scientists Discover A Scorched Planet With A Comet-Like Tail

Monday, June 05, 2017

The planet called KELT-9b is around three times more massive than Jupiter. It orbits a blue star about 650 light-years away from Earth that's nearly twice as hot as our own sun.