What a well-timed month in which to relaunch this groundbreaking astronomical science series. Earlier this week, scientists unearthed a potential new discovery that not only might validate another of Einstein’s theories, but the entire Big Bang theory as well. (The concept, not the sitcom.) Even today, some people don’t believe some of the science discussed in Cosmos – but there has been progress. And that’s the subject of tonight’s installment, titled “When Knowledge Conquered Fear.” Astrophysicist Neil deGrasse Tyson hosts.