The Hercules Globular Cluster (or M13) was famously the target for a message intended for alien civilisations... But it is an unlikely place to find life-friendly planets. Messier object playlist: http://bit.ly/MessierObjects

Quite a large cast in this video, so see our cast page at: http://www.deepskyvideos.com/pages/co...

Image contributors included:
Michael Siniscalchi: http://www.helixgate.net/
Fred Espenak: http://astropixels.com

Deep Sky Videos website: http://www.deepskyvideos.com/
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Flickr: http://www.flickr.com/photos/68847473...

Videos by Brady Haran
Additional filming and editing in this film by Stephen Slater