We Are The Universe: Lawrence Krause, Carl Sagan, Neal deGrasse Tyson http://www.sciencedump.com/content/we-are-universe?utm_source=ScienceDump+News&utm_campaign=53fd94a53a-RSS_EMAIL_CAMPAIGN&utm_medium=email&utm_term=0_ab3c58e0d1-53fd94a53a-55785881
