NOVA: Mysteries of Sleep Fulfilled By AEC while brother Pete became a

while brother Pete became a huge figure on the West Coast jazz scene

Frank Solivan & Dirty Kitchen are at the forefront of the current wave of artists defining what bluegrass means in the 21st century

as a teacher he consistently declared his preference for the traditions of the old Roman school of composition

"Existence At A Distance" is chaotic

NOVA: Mysteries of Sleep Fulfilled By AEC while brother Pete became aVirtually every animal sleeps. But why? Why do we need to spend nearly a third of our lives in such a defenseless state? Scientists are peering more deeply into the sleeping brain than ever before, discovering just how powerful sleep can be, playing a role in everything from memory retention and emotional regulation to removing waste from our brains. So why are we getting so little of it? Producers: Laurie Cahalane, Melanie Wallace, Terri Randall