Early Hominid Fossil Find: Researchers unveiled several studies of an early hominid known as Ardipithecus ramidus. We'll find out how those studies affect our understanding of human evolution. (first broadcast Friday, October 2, 2009)

Can Bats and Wind Power Get Along?: New research finds that an adjustment to wind turbines could allow bats and wind power generation to better co-exist. (first broadcast Friday, October 2, 2009)

Lester Brown: Plan B 4.0: Ira talks about global sustainability with Lester Brown, head of the Earth Policy Institute. (first broadcast Friday, October 2, 2009)

Green Your Lawn: Many home gardeners love a green lawn -- but how can you be grow green grass in the environmental sense as well? (first broadcast Friday, October 2, 2009)

'The Strangest Man,' Paul Dirac: Ira talks with Graham Farmello, author of a new biography of physicist Paul Dirac. (first broadcast Friday, October 2, 2009)

Tracking Bird Migration: Geese head south for the winter, and the swallows return to Capistrano - but how? In this hour, we'll talk about how birds make their migratory journeys, and how scientists are trying to study their travels. (first broadcast Friday, October 9, 2009)

Being a Veterinarian: If you're a doctor, how do you take care of patients that can't tell you where it hurts? In this hour of Science Friday, we'll take a look at what vets do. From large animal-, to small animal-, to research vets, we'll get an inside look at the practice of (first broadcast Friday, October 9, 2009)

Creating Memories: Researchers have used pulses of light to store the memory of a bad event that never actually happened into the brains of fruit flies. We'll talk about how, and why. (first broadcast Friday, October 16, 2009)

Moon in Review: Last week, NASA crashed a probe into the surface of the moon in search of water, just weeks after two other teams reported finding their own clues to the presence of water in the lunar soil. We'll get a wrapup on the hunt for water on the moon. (first broadcast Friday, October 16, 2009)

A Virus and Chronic Fatigue?: Researchers have identified a link between the presence of a virus known as XMRV and Chronic Fatigue Syndrome -- but what does the presence of such a link mean? (first broadcast Friday, October 16, 2009)

Surveying the Heliosphere: A series of journal articles published this week draw a new picture of our solar system's heliosphere, the bubble carved out in the interstellar medium by the solar wind. (first broadcast Friday, October 16, 2009)

Climate Policy Who's Who: We get the forecast for domestic climate change policy in the months ahead. (first broadcast Friday, October 16, 2009)

Rare Mother-to-Fetus Cancer Transmission Described: Researchers have identified an instance of a pregnant mother transmitting cancer cells to her offspring. (first broadcast Friday, October 16, 2009)

Kids' Science Challenge: We'll talk about the Kids' Science Challenge, a NSF-funded competition that challenges kids to come up with problems that can be solved via science. (first broadcast Friday, October 16, 2009)

Neuroscience Meeting Highlights: We'll talk about some of the research presented this week at the Society for Neuroscience annual meeting. (first broadcast Friday, October 23, 2009)

Now Hear This: We'll talk about research into how people hear, from the tiny hair cells within the ear, to the body's ways of dealing with loud noises. (first broadcast Friday, October 23, 2009)

All Listeners Must Wash Hands: Mom told you to wash your hands -- but do you? New research gets the dirt on our handwashing behaviors. (first broadcast Friday, October 23, 2009)

Are Humans Still Evolving?: Has access to modern medical care thrown a wrench into the 'survival of the fittest' basis of evolution? New research says no -- we're still evolving. (first broadcast Friday, October 23, 2009)

Frans de Waal and 'The Age of Empathy': Where does empathy come from - and can animals be empathetic? In this segment, primatologist Frans de Waal joins us to discuss the topic. (first broadcast Friday, October 23, 2009)

Extinctions from Algae?: Many scientists attribute the world's great extinction events to major catastrophes such as asteroid strikes and massive volcanic eruptions. We'll talk with researchers exploring an alternate theory -- that massive algal blooms led to mass extinctions. (first broadcast Friday, October 23, 2009)

Gene Therapy and Blindness: With just one injection of an experimental gene therapy treatment, doctors have been able to significantly improve the sight of 12 individuals born with a rare congenital vision disorder called Leber's congenital amaurosis. (first broadcast Friday, October 30, 2009)

Arpanet Anniversary: Forty years ago this week, the first information was transmitted across the ARPANET -- a computer network that would one day evolve into the Internet. (first broadcast Friday, October 30, 2009)

Running Research: It's the fall marathon season -- so we're taking a look at the science of running. (first broadcast Friday, October 30, 2009)

Cannibalism: We hear about the history and anthropology surrounding the consumption of human flesh. (first broadcast Friday, October 30, 2009)

Geek My Halloween: We want to hear how you're bringing science and technology to your Halloween festivities. (first broadcast Friday, October 30, 2009)

Science of Zombies: Yes, we know they're imaginary -- but what would a psychiatrist make of the brain of a zombie? (first broadcast Friday, October 30, 2009)