Nell Greenfieldboyce Nell Greenfieldboyce is a NPR science correspondent.
Nell Greenfieldboyce 2010
Stories By

Nell Greenfieldboyce

SpaceX Moves To Launch First-Ever Private Mission To The Moon

  • Download
  • <iframe src="https://www.npr.org/player/embed/517779759/517779760" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Scientists rallied for evidence-based public policy outside the American Geophysical Union's fall meeting in San Francisco in December. Marcio Jose Sanchez/AP hide caption

toggle caption
Marcio Jose Sanchez/AP

Should Scientists March? U.S. Researchers Still Debating Pros And Cons

  • Download
  • <iframe src="https://www.npr.org/player/embed/515584634/516787865" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

This artist's rendering shows what one of the seven planets, TRAPPIST-1f, might look like. NASA/JPL-Caltech hide caption

toggle caption
NASA/JPL-Caltech

Astronomers Find 7 Earth-Size Planets Around A Nearby Star

  • Download
  • <iframe src="https://www.npr.org/player/embed/516431116/516695506" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The Apollo 11 command module Columbia sits in the Mary Baker Engen Restoration Hangar in Virginia, where it is undergoing conservation. Dane Penland/National Air and Space Museum/Smithsonian Institution hide caption

toggle caption
Dane Penland/National Air and Space Museum/Smithsonian Institution

The Australian pitcher plant repurposed some of its genes in order to digest bugs. Natalie McNear/Flickr hide caption

toggle caption
Natalie McNear/Flickr

Carnivorous Plants Around The Globe Use Similar Deadly Tricks

  • Download
  • <iframe src="https://www.npr.org/player/embed/513315490/513769999" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

For the first time, scientists have synthesized a three-stranded molecular braid that twisted into a knot with eight crossings, as in this rendering. Stuart Jantzen/Biocinematics.com/Science hide caption

toggle caption
Stuart Jantzen/Biocinematics.com/Science

Scientists Have Twisted Molecules Into The Tightest Knot Ever

  • Download
  • <iframe src="https://www.npr.org/player/embed/509353074/509624516" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The killer whale J2, better known as "Granny," pokes her head out of the water in the Salish Sea near the San Juan Islands of Washington in July 2016. Granny, who was thought to be about 105 years old at the time, was presumed to have died later that year. Mark Malleson/Center for Whale Research/AP hide caption

toggle caption
Mark Malleson/Center for Whale Research/AP

Menopause Mystery: Why Do Female Killer Whales Experience The Change Of Life?

  • Download
  • <iframe src="https://www.npr.org/player/embed/509352927/509542864" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

NASA Faces The Unknown In Preparing For Trump Administration

  • Download
  • <iframe src="https://www.npr.org/player/embed/508668009/508668010" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Scientists Ponder Whether Our Universe Is The Only One That Exists

  • Download
  • <iframe src="https://www.npr.org/player/embed/507359565/507359570" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

What Is The Universe Made Of? Scientists Respond

  • Download
  • <iframe src="https://www.npr.org/player/embed/507208573/507208576" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Is The Universe Infinite?

  • Download
  • <iframe src="https://www.npr.org/player/embed/507063437/507063438" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The marmalade hoverfly might not be the flashiest bug under the sun, but researchers say it "does some very important jobs." Clifton Beard/Flickr hide caption

toggle caption
Clifton Beard/Flickr

Bugs Abound: If You Think The Skies Are Crowded, You Have No Idea

  • Download
  • <iframe src="https://www.npr.org/player/embed/506581610/506626010" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript