Science The latest health and science news. Updates on medicine, healthy living, nutrition, drugs, diet, and advances in science and technology. Subscribe to the Health & Science podcast.

To Keep Up With Earth's Rotation, Clocks Will Tick An Extra Second Tonight

  • Download
  • <iframe src="https://www.npr.org/player/embed/418924569/418924570" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

This is a calculated flood map for the city of St. Louis. Water depth goes from deep (dark blue) to shallow (white, light blue). Floodwater can come from the Illinois, Upper Mississippi and Missouri rivers, as well as from heavy local precipitation. Courtesy of Dag Lohmann/Katrisk hide caption

toggle caption
Courtesy of Dag Lohmann/Katrisk

Flood Maps Can Get Much Sharper With A Little Supercomputing Oomph

  • Download
  • <iframe src="https://www.npr.org/player/embed/418643595/418924596" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Clocks around the world, like Big Ben, will have an extra second added tonight. Oli Scarff/Getty Images hide caption

toggle caption
Oli Scarff/Getty Images

11:59:60 — Look For An Extra Tick Of The Clock Tonight

  • Download
  • <iframe src="https://www.npr.org/player/embed/418594948/418985540" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">

U.N. Holds Climate Talks In New York Ahead Of Paris Meeting

  • Download
  • <iframe src="https://www.npr.org/player/embed/418641168/418641169" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A plume of steam billows from the coal-fired Merrimack Station in Bow, N.H. in January 2015. Jim Cole/AP hide caption

toggle caption
Jim Cole/AP

Supreme Court Rules In Industry's Favor. What's EPA's Next Move?

  • Download
  • <iframe src="https://www.npr.org/player/embed/418581616/418641218" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

A cabbage butterfly caterpillar. For tens of millions of years, these critters have been in an evolutionary arms race with plants they munch on. The end result: "mustard oil bombs" that also explode with flavor when we humans harness them to make condiments. Courtesy of Roger Meissen/Bond LSC hide caption

toggle caption
Courtesy of Roger Meissen/Bond LSC

Travis Driscoll, a medical school applicant from Berkeley, Calif., studies for the revamped MCAT. April Dembosky/KQED hide caption

toggle caption
April Dembosky/KQED

Medical School Hopefuls Grapple With Overhauled Entrance Exam

  • Download
  • <iframe src="https://www.npr.org/player/embed/417421252/418641242" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Bite into that bread before your main meal, and you'll spike your blood sugar and amp up your appetite. Waiting until the end of your dinner to nosh on bread can blunt those effects. iStockphoto hide caption

toggle caption
iStockphoto

Curb Your Appetite: Save Bread For The End Of The Meal

  • Download
  • <iframe src="https://www.npr.org/player/embed/417500957/418641205" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

SpaceX Rocket Breaks Up On Liftoff

  • Download
  • <iframe src="https://www.npr.org/player/embed/418490309/418490318" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript
Stuart Kinlough/Getty Images/Ikon Images

Vaccine Against Meningitis B Gets A Boost From CDC

  • Download
  • <iframe src="https://www.npr.org/player/embed/417851076/418490451" width="100%" height="290" frameborder="0" scrolling="no" title="NPR embedded audio player">
  • Transcript

Melissa Malzkuhn, director of the Motion Light Lab at Gallaudet University, suits up in motion capture to record a nursery rhyme for deaf children. Emma Bowman/NPR hide caption

toggle caption
Emma Bowman/NPR