Uploaded March 2016 | Updated September 2026, 2 weeks ago

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It's not a Messier Object, but we let Professor Paul Crowther tell us all about Westerlund 1 and its impressive magnetar.
More videos on Messier Objects, including many clusters: bit.ly/MessierObjects

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Made possible by:
The University of Nottingham
and The University of Sheffield.

Video by Brady Haran
This video edited by James Hennessy