Nature Secrets of the Sun PBS’ Nova looks at the Sun and solar physics. Just one stunning fact from the show: More than one million Earths could fit inside the Sun. The Sun is not liquid or solid, it’s plasma with a core full of nuclear fusion. Share This Previous ArticleRoman Polanski's 'Weekend of a Champion': Formula 1 Racing in 1971 Monaco Next ArticleThe Lumière Brothers: The First Documentaries September 1, 2014
