Uploaded February 2012 | Updated September 2026, 2 weeks ago

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We're discussing the M3 Globular Cluster and its "blue straggler" stars. Messier object playlist: bit.ly/MessierObjects

Featuring Professor Mike Merrifield from the University of Nottingham.

Picture credits:
Adam Block - caelumobservatory.com
Fred Espenak - astropixels.com

Deep Sky Videos website: deepskyvideos.com
Twitter: twitter.com/#!/DeepSkyVideos
Facebook: facebook.com/DeepSkyVideos
Flickr: flickr.com/photos/68847473@N02
More about the astronomers in our videos: deepskyvideos.com/pages/contributors.html

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

Brady's other channels include:
youtube.com/periodicvideos (Chemistry stuff)
youtube.com/sixtysymbols (Physics and astronomy)
youtube.com/numberphile (Numbers and maths)
youtube.com/nottinghamscience (Science and behind the scenes)
youtube.com/foodskey (Food science)
youtube.com/BackstageScience (Big science facilities)
youtube.com/favscientist (Favourite scientists)
youtube.com/bibledex (Academic look at the Bible)
youtube.com/wordsoftheworld (Modern language and culture)