Science Friday Audio Podcast: Episodes

Did you know some infinities are bigger than others? Or that one is equal to .99999999999 repeating? Just a few of the math mysteries in <em>The Joy of X</em>, a new book by Steven Strogatz.
Stem cells can be turned into heart, liver, and brain cells -- but what about a whole new organism? A study in <em>Science</em> explains the transformation from stem cell to egg to mouse pup.
For rhinoceros beetles, size matters.
The black hole resides at the center of a galaxy located 50 million light-years from Earth.
Researchers are studying how gene regulation influences memory.
Crown-of-thorns starfish are partly to blame for the Great Barrier Reef's alarming loss of coral cover.
Mapping streets is easy. The trick is pinning down businesses and giving accurate turn-by-turn directions.
We’ll check in with biologists studying American kestrels, prairie falcons, red-tailed hawks, and other raptors that nest in Idaho's Snake River Birds of Prey National Conservation Area. Plus, bringing back the California condor.
Move over mammoths -- many lesser-known beasts roamed North America during the Ice Age too.
Cheatgrass, an invasive weed, chokes out native sagebrush -- and sets the stage for massive blazes.
"All DNA evidence is not created equal," says Greg Hampikian, Director of the Idaho Innocence Project. He’ll tell us why DNA 'evidence' sometimes leads to the wrong conclusion.
Spray-on skin, made-to-order muscle, and print-out kidneys aren't just science fiction anymore.
A Kickstarter-funded project aims to build a machine to print micro solar panels.
Food waste is a growing problem in the U.S., so what can we do to fix it?
Experts debate whether government regulations are an effective way to fight the obesity epidemic.
Mathematician Ian Stewart joins the September book club meeting for a look at Edwin Abbott’s ‘Flatland.’
This convention is for mushrooms and the people who love them.
If microbial stowaways did hitch a ride to Mars, how will Curiosity's mission be affected?
Could a comet or an asteroid be to blame for the fireball on Jupiter?
A paper finds wind energy could provide hundreds of terawatts, if enough turbines are installed.
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