Blueshift - January 29, 2009: Confounding Cosmic Questions

This episode features a strange signal from deep space, which could be a plot straight out of a Hollywood film. But this radio signal was detected by a NASA mission called ARCADE, which flew above the atmosphere suspected from a balloon to capture light from the first stars and galaxies that formed in the Universe. When data showed something totally unexpected, that's when things got interesting. We interviewed Al Kogut and Dale Fixsen about this discovery, ARCADE, and how you can also detect this mysterious radio signal from outer space with any FM radio.