July 2010 Extra

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School's out for summer. This bumper edition has been created with the help of 6 work experience students. Paul Woods tells us about dust in space [16:18-20:40], Jon Pearson is interviewed about general relativity [34:10-40:46], Mark Purver talks about pulsars [20:52-33:38], Jen Gupta answers questions on galaxies [41:04-50:57] and Adam Avison explains massive star formation [51:37-57:58]. We also get an update on the Planck mission [01:16-15:52] and Dave Jones answers astronomical questions [58:23-77:16]