Nell Greenfieldboyce

Nell Greenfieldboyce appears in the following:

Out Of This World: How Artists Imagine Planets Yet Unseen

Monday, October 24, 2016

When astronomers spot a new planet that's too far away to be seen in detail, they work with artists to depict it. Space artists say they have a lot of freedom, but have to be careful, too.


Why Worries About Paperless Voting Loom Larger This Year

Tuesday, October 18, 2016

In tight elections, the loser often calls for a recount. But recounting ballots might not be easy in states that use paperless machines — including the presidential battleground state of Pennsylvania.


Obama Declares Humans Should Go To Mars By The 2030s

Wednesday, October 12, 2016

President Obama has once again declared that humans should go to Mars by the 2030s. NPR looks back on his eight years in office to see whether he's put NASA on track to get there.


Scientists To Bid A Bittersweet Farewell To Rosetta, The Comet Chaser

Thursday, September 29, 2016

To cap its 12-year scientific voyage, the Rosetta spacecraft will take a final plunge Friday. Scientists will signal Rosetta to crash into the surface of a comet — and gather data all the way down.


NASA Spots What May Be Plumes Of Water On Jupiter's Moon Europa

Monday, September 26, 2016

If jets of water vapor are indeed erupting from Europa, a spacecraft could potentially fly through them and analyze their chemistry. The moon is believed to have a vast subterranean, saltwater ocean.


Astronomers Find Clues In The Case Of The Glowing Space 'Blobs'

Wednesday, September 21, 2016

Blobs in space emitting eerie, unexplained light have been puzzling astronomers for more than 15 years. Now, they think they are on to the cause of the mysterious glow.


NASA's Other Asteroid Mission: Grab A Chunk And Put It In Orbit Around The Moon

Friday, September 09, 2016

Flying people to an asteroid is really hard, so NASA wants to bring part of it to them. But some former astronauts say the $2 billion plan was born of politics and budget cuts, and makes little sense.


Most Humpback Whales Taken Off Endangered Species List

Wednesday, September 07, 2016

The National Marine Fisheries Service says nine of the 14 distinct populations of humpback whales have recovered enough that they no longer need to be considered endangered.


For Lizards, Climate Change Is A Deadly — And Complex — Threat

Monday, September 05, 2016

Scientists knew that lizards, which bask in the sun for warmth, are vulnerable to climate change. A new study suggests the hazards are more complicated, and possibly worse, than previously believed.


Their Masters' Voices: Dogs Understand Tone And Meaning Of Words

Tuesday, August 30, 2016

When humans talk to dogs, the canine brains seem to separate the meaning of the words from the intonation used and to analyze each aspect independently.


This Planet Just Outside Our Solar System Is 'Potentially Habitable'

Wednesday, August 24, 2016

It's not exactly close — 25 trillion miles from Earth, say the scientists who spotted it. But that might be near enough for further exploration. It's about Earth's size, with mild temperatures.


The Physics And Psychology Of 'The Wave' At Sporting Events

Monday, August 15, 2016

You may love or hate "the wave" as it sweeps through spectators at baseball, football and soccer games. But physicists say the synchronized action shows how humans are like particles.


Talk About An Ancient Mariner! Greenland Shark Is At Least 272 Years Old

Thursday, August 11, 2016

This Arctic species can live longer than any other known animal advanced enough to have a backbone, scientists say — maybe more than 500 years. Their muscles might hold clues that could help humans.


Astronomers Predict Incredible Show As Perseid Meteor Shower Peaks

Wednesday, August 10, 2016

The popular annual Perseid meteor shower peaks Thursday night. If astronomical predictions hold true, it could be the best show in years.


Most Nighttime Crashes With Teen Drivers Happen Before Midnight

Wednesday, August 03, 2016

Nighttime driving restrictions on teens may save lives, a study finds, but should probably be shifted to include late evening. A third of all fatal crashes with teen drivers happen after dark.


The Mystery Of The Fireball That Lit Up The Western Sky

Thursday, July 28, 2016

A mysterious fireball seen in the sky over the American West on Wednesday night turned out to be Chinese rocket falling through the atmosphere.


How Jupiter's Red Spot Makes Things High Above It Hot, Hot, Hot

Wednesday, July 27, 2016

Think summer's hot on Earth? Space physicists tracking weather on Jupiter say the roar of the raging storm we call the Great Red Spot heats the outer atmosphere above it by more than 1,000 degrees F.


How Wild Birds Team Up With Humans To Guide Them To Honey

Thursday, July 21, 2016

It sounds like a fairy tale but it's real. A study shows how wild birds and people communicate to find bees' nests and share the sweet honeycomb. The teamwork may date back thousands of years or more.


Climate Change May Already Be Shifting Clouds Toward The Poles

Monday, July 11, 2016

Scientists who have been tracking cloud patterns over the past two decades say the shifts they're seeing seem to correlate closely with what's predicted by computer models of Earth's changing climate.


What Comes Next For NASA After Juno? Not Much

Tuesday, July 05, 2016

Enjoy Juno's trip to Jupiter — after that we'll see a little gap in planetary science missions from the U.S. That's because a NASA budget crunch several years ago left fewer missions in the pipeline.