Science

Guest host Euan Kerr talked with a technology reporter and an expert in technology and public policy about how consumer data is collected, sold and used by businesses, and what you can do to protect your privacy online.
Green 'Christmas Comet' visible in night sky
The comet 46P/Wirtanen just made its closest approach to Earth in centuries. No word on the whereabouts of Dasher, Dancer, Prancer, Vixen, Cupid, Donner or Blitzen (and Rudolph).
Seagrass could stall climate change -- if climate change doesn't kill it first
Scientists have identified a giant bed of deep sea grass in Australia's Great Barrier Reef that may be absorbing millions of tons of carbon. But these so-called blue carbon sinks need protecting, too.
Next-generation GPS satellite heads to space this week
After months of delays, the U.S. Air Force is about to launch the first of a new generation of GPS satellites, designed to be more accurate, secure and versatile.
Superior residents ask feds to end use of toxic chemical at refinery
After an explosion and massive fire at the Husky Energy refinery in Superior, Wis., in April, residents of Superior and Duluth are calling for the end of the use of a hazardous chemical used at the plant called hydrogen fluoride.
Steven Pinker on the importance of science and reason
Steven Pinker speaks about his newest book, "Enlightenment Now: The Case for Reason, Science, Humanism and Progress."