Email Record: The fabric of the cosmos / senior producer, Jonathan Shula ; series executive producer, Joseph McMaster ; senior series producer, Melanie Wallace ; executive producer, Howard Swartz ; senior executive producer, Paula S. Apsell ; a NOVA Production by 32-12 Media (program 1), Film Posse (program 2), Spine Films (program 3), Lone Wolf Documentary Group (program 4) ; in association with ARTE France and National Geographic Channel ; WGBH Educational Foundation.