Science Friday

All the pups we love—from chihuahuas to great danes—are descendants of the mighty gray wolf. But how did we end up with so many breeds? The story that's often told is that dog diversity really took off with the Victorians in the 1800s, but new research is unleashing a different tale. Host Flora Lichtman talks with bioarchaeologist Carly Ameen about the diversification of dogs. 
Plus, a long-running experiment to tame silver foxes is cluing us into how domestication happens. Canine researcher Erin Hecht gives us a glimpse into the experiment and what it tells us about domesticated brains.
Guests:
Dr. Carly Ameen is a bioarcheologist and lecturer at the University of Exeter in England.
Dr. Erin Hecht is an evolutionary biologist at Harvard in Cambridge, Massachusetts. 
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We keep hearing that these are unprecedented times for science: scientific skeptics running federal agencies, growing mistrust of vaccines, and messaging from the highest levels of government that scientists are in the pocket of industry. 
To understand how unique this time really is, we’re talking to Naomi Oreskes, a science historian who has spent her career studying skepticism in science. She joins Host Flora Lichtman to discuss our current moment, and how ghostwriting in scientific papers is harming public trust in science.
Guest: Naomi Oreskes is a professor of the history of science at Harvard University, based in Cambridge, MA.
Transcripts for each episode are available within 1-3 days at sciencefriday.com.

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In a speech last week in a speech at the World Economic Forum, President Trump said China was making a lot of wind turbines, but not using much wind power in their own country. Is that right? 
China studies professor Jeremy Wallace joins Host Ira Flatow to talk about the renewable energy landscape in China. They’ll dig into how China is flooding the world with affordable solar technology, making it the cheapest form of electricity in history. Plus, what energy tech China is manufacturing, what it's using domestically, and what it's exporting.
Guest: Dr. Jeremy Wallace is the A. Doak Barnett Professor of China Studies at Johns Hopkins University
Transcripts for each episode are available within 1-3 days at sciencefriday.com.

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Forty years ago this week, the space shuttle Challenger exploded in flight, 73 seconds after liftoff from Cape Canaveral. All seven crew members were killed. In the months that followed, the tragedy was traced to a failed O-ring in one of the shuttle’s rocket boosters. Now, with the Artemis II mission preparing for launch to lunar orbit, what have we learned about spaceflight and risk? 
Former astronaut Jim Wetherbee joins Host Ira Flatow to remember the Challenger tragedy, and look ahead to the age of private spaceflight and the upcoming Artemis II mission.
Guest: Jim Wetherbee is a former NASA astronaut, the former head of flight crew operations for NASA, and the author of Controlling Risk: Thirty Techniques for Operating Excellence.
Transcripts for each episode are available within 1-3 days at sciencefriday.com.

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A rogue strain of flu, subclade K, has sickened more than 19 million people in the US so far this season. And the flu shot hasn’t offered that much protection. What’s going on with this superflustorm?
Joining Host Flora Lichtman with some answers is Jennifer Duchon, a pediatric infectious disease specialist.
Guest: Dr. Jennifer Duchon is a pediatric infectious disease specialist at Mount Sinai Hospital in New York.
Transcripts for each episode are available within 1-3 days at sciencefriday.com.

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