More answers to questions from Sixty Symbols viewers, covering the LHC, exploding stars and galaxies made of anti-matter. Part One is at https://www.youtube.com/watch?v=V6ZPpC_lyYw More LHC videos: http://bit.ly/LHCvideos Including Philip Moriarty, Ed Copeland and Meghan Gray and Laurence Eaves and Mike Merrifield