Why Aren't Pandas Breeding In Chengdu?
  • Download
  • <iframe src="https://www.npr.org/player/embed/123229126/123229350" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Maggie Starbard for NPR
Listen Here Before It's Too Late
  • Download
  • <iframe src="https://www.npr.org/player/embed/122322542/123217189" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Coronal loops, seen here, are fountains of multimillion-degree gas in the atmosphere of the sun. They are often precursors to solar flares, which emit strong bursts of electromagnetic energy. NASA/AP hide caption

toggle caption NASA/AP
Storms In Space Disrupt Travel On Earth
  • Download
  • <iframe src="https://www.npr.org/player/embed/123111882/123235080" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Four-year-old Tai Shan, aka "Butterstick," is traveling from Washington, D.C., to China on Thursday as part of an agreement between the National Zoo and the China Wildlife Conservation Association. The panda will be bred in an effort to reintroduce the species into the wild. Mehgan Murphy/National Zoo hide caption

toggle caption Mehgan Murphy/National Zoo
Zoo Fetes Giant Panda Before China Departure
  • Download
  • <iframe src="https://www.npr.org/player/embed/123214590/123229348" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The space shuttle Discovery orbits in space in a March, 2009 mission. The nearly 30-year-old space shuttle program is set to end in 2010. After five more missions, NASA's three shuttles — the Discovery, Atlantis and Endeavour – will be retired. Courtesy NASA hide caption

toggle caption Courtesy NASA
NASA To Get Hefty Boost In Proposed 2011 Budget
  • Download
  • <iframe src="https://www.npr.org/player/embed/123210564/123232719" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Alexander Kendrick stands in the Lake of the Clouds after testing his invention. He and the team of cavers executed the deepest known digital communication ever to take place in the United States. Brad Horn for NPR hide caption

toggle caption Brad Horn for NPR
Texting Underground Can Save Lives And Caves
  • Download
  • <iframe src="https://www.npr.org/player/embed/123116417/123180451" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Sean Carroll On The Mysteries Of Time
  • Download
  • <iframe src="https://www.npr.org/player/embed/123115538/123115517" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Could An Asteroid Slam Earth Without Warning?
  • Download
  • <iframe src="https://www.npr.org/player/embed/123115534/123115516" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Mystery Of The Bdelloid Dry Spell Solved
  • Download
  • <iframe src="https://www.npr.org/player/embed/123115528/123115515" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Stargazing At The Opera
  • Download
  • <iframe src="https://www.npr.org/player/embed/123115522/123115514" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
NASA Prepares Spirit For Winter On Mars
  • Download
  • <iframe src="https://www.npr.org/player/embed/123115518/123115513" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

The bdelloid rotifer Philodina gregaria. Bdelloid rotifers are tiny invertebrates that reproduce asexually. Courtesy of Micrographia hide caption

toggle caption Courtesy of Micrographia
Listen To Segment: A Long Dry Spell
  • Download
  • <iframe src="https://www.npr.org/player/embed/123067622/123098922" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Water in the atmosphere traps heat, like glass in a greenhouse. When there's less water vapor in the atmosphere, less heat is trapped. Space Frontiers/Getty Images hide caption

toggle caption Space Frontiers/Getty Images
Atmospheric Dry Spell Eases Global Warming
  • Download
  • <iframe src="https://www.npr.org/player/embed/123075836/123081449" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A barefooted runner takes to the streets. Charlie Riedel/AP hide caption

toggle caption Charlie Riedel/AP
Study: Humans Were Born To Run Barefoot
  • Download
  • <iframe src="https://www.npr.org/player/embed/123031997/123035024" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

An artist's rendition of two Sinosauropteryx dinosaurs, showing their short, bristle-like feathers along the midline of the head, neck, back and around the tail, forming irregular stripes. Chuang Zhao and Lida Xing hide caption

toggle caption Chuang Zhao and Lida Xing
Listen Discovering Dinosaur Color From Fossilized Feathers
  • Download
  • <iframe src="https://www.npr.org/player/embed/123018405/123038127" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript