Scientists Grapple with 'Dark Energy' Theory
  • Download
  • <iframe src="https://www.npr.org/player/embed/1577769/1577770" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Mad Cow Disease Feared in Washington State
  • Download
  • <iframe src="https://www.npr.org/player/embed/1568720/1568721" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Study: Soot Plays Big Role in Climate Warming
  • Download
  • <iframe src="https://www.npr.org/player/embed/1567051/1567052" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Images from NASA's Newest Camera
  • Download
  • <iframe src="https://www.npr.org/player/embed/1553549/1553550" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Science Group Issues Climate Change Warning
  • Download
  • <iframe src="https://www.npr.org/player/embed/1551355/1551356" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Unraveling Mammal Evolution in Africa
  • Download
  • <iframe src="https://www.npr.org/player/embed/1534455/1537150" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Sea Creature Turns Up as Oldest Male Fossil
  • Download
  • <iframe src="https://www.npr.org/player/embed/1532554/1532797" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Is Risk of Disease in Food Supply Increasing?
  • Download
  • <iframe src="https://www.npr.org/player/embed/1524185/1524186" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Study: European Language Began in Turkey
  • Download
  • <iframe src="https://www.npr.org/player/embed/1523690/1523691" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
It Takes a Village to Raise a Baboon Child, Too
  • Download
  • <iframe src="https://www.npr.org/player/embed/1505426/1505427" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Voyager Nears End of Solar System
  • Download
  • <iframe src="https://www.npr.org/player/embed/1493986/1494296" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
Study Analyzes Changes in Ice Cap
  • Download
  • <iframe src="https://www.npr.org/player/embed/1490885/1490886" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">