Dr Maggie Lieu (from the University of Nottingham) discusses the "anaemic" spiral galaxy M91.
More links and info in full description ↓↓↓

Messier Objects playlist: http://bit.ly/MessierObjects

Dr Lieu's website: https://maggielieu.com

M91 on SEDS database: https://www.messier.seds.org/m/m091.html

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Video by Brady Haran