Nell Greenfieldboyce appears in the following:
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.
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.
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.
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.
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.
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."
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.
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.
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.
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.
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.
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.
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."
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.
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.
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.
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.
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.
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?
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.