David Kestenbaum David Kestenbaum is a science correspondent for NPR. His job allows him to combine his extensive background in physics with his love of broadcast journalism.

DNA as Software

  • Download
  • <iframe src="https://www.npr.org/player/embed/1244325/1244326" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Siberian Soil Yields a Wealth of Ancient DNA

  • Download
  • <iframe src="https://www.npr.org/player/embed/1236053/1236054" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

EPA Proposes Off-Road Diesel Emission Reductions

  • Download
  • <iframe src="https://www.npr.org/player/embed/1233245/1233246" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Satellite Reveals Bombing Damage in Baghdad

  • Download
  • <iframe src="https://www.npr.org/player/embed/1214104/1214105" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Military Urged to Develop Weapons that Don't Kill

  • Download
  • <iframe src="https://www.npr.org/player/embed/831745/831746" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

New Gas Discovered in Moscow Rescue

  • Download
  • <iframe src="https://www.npr.org/player/embed/828898/828899" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Handwriting Experts Could Assist Hunt for Sniper

  • Download
  • <iframe src="https://www.npr.org/player/embed/1152223/152223" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

Have Satellite, Will Spy

  • Download
  • <iframe src="https://www.npr.org/player/embed/1151955/151955" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript