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An MQ-1 Predator unmanned aerial vehicle takes off from Creech Air Force Base, Nev., May 11, for a training sortie over the Nevada desert. U.S. Air Force photo/Staff Sgt. Brian Ferguson.

Study Tracks Alzheimer's Progression In Mice: A new study looks at the role a corrupted protein plays in the development of Alzheimer’s disease. (first broadcast Friday, February 3, 2012)

IBEX Spacecraft Intercepts ‘Alien’ Particles: IBEX studies the composition of the Milky Way by measuring the abundance of interstellar particles. (first broadcast Friday, February 3, 2012)

What Grosses You Out?: Rachel Herz discusses her book That’s Disgusting: Unraveling the Mysteries of Repulsion. (first broadcast Friday, February 3, 2012)

Blue Marble: The Making Of : There’s artistry in creating the world. (first broadcast Friday, February 3, 2012)

Drone Technology Reaches New Heights: Experts discuss the military and commercial applications of increasingly sophisticated drones. (first broadcast Friday, February 3, 2012)

Listening In On The Brain To Decode Speech: A study in PLoS Biology details how researchers decoded the brain’s electrical activity to reconstruct speech. (first broadcast Friday, February 3, 2012)

Magnetic Soap May Help Clean Up Spilled Oil : Scientists have created an iron-containing soap that can be removed from solution with a magnet. (first broadcast Friday, January 27, 2012)

How ‘Space Weather’ Affects Planes And Power Grids: Solar explosions earlier this week sent X-rays and charged particles screaming towards the Earth. (first broadcast Friday, January 27, 2012)

A Mobile Wallet: Cash, Credit, Or... Cell Phone?: Google already offers a way to buy lunch with a phone; cell providers and banks aren’t far behind. (first broadcast Friday, January 27, 2012)

Ode To Ice: Two experts--an ice sculptor and an ice researcher--explain why ice is cool. (first broadcast Friday, January 27, 2012)

Stem Cell Eye Therapy Shows Promise: A study in The Lancet is the first published report on embryonic stem cell use in humans. (first broadcast Friday, January 27, 2012)

Can Science Be Done Without Secrecy? : Physicist Michael Nielsen discusses his book Reinventing Discovery: The New Era of Networked Science. (first broadcast Friday, January 27, 2012)

Ancient Skull Holds Clues to Dog Domestication: Discovery of an ancient skull sheds light on the domestication of dogs. (first broadcast Friday, January 27, 2012)

Defending Climate Science’s Place In The Classroom: The National Center for Science Education helps teachers keep pseudoscience out of the classroom. (first broadcast Friday, January 20, 2012)