This talk is only 11 minutes long, but it's gracefully fascinating. If you love astronomy, you'll love hearing the universe. :)
http://www.ted.com/talks/honor_harger_a_history_of_the_universe_in_sound.htmlAbout this talk
Artist-technologist Honor Harger listens to the weird and wonderful noises of stars and planets and pulsars. In her work, she tracks the radio waves emitted by ancient celestial objects and turns them into sound, including "the oldest song you will ever hear," the sound of cosmic rays left over from the Big Bang.
About Honor Harger
Honor Harger explores the sounds of the sky, using art to connect her audience to the universe.