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Welcome to U3ACommunities

U3ACommunities is a free on-line platform for enquiring minds. It hosts a number of subject based groups who meet on-line monthly. It is independent of the Third Age Trust.

Whilst most of our members are beyond the age of retirement, we do allow anyone to join.

Use the GROUPS menu above to browse the groups and SUBSCRIBE to join one or more groups – you’ll then be emailed about new meetings and other posts. Both subscribing and attending meetings are free.

Individual groups may allow commenting on pages for any post-meeting follow-ups or discussions. The previously offered discussion forum has been disabled due to lack of use.

Why not join the fediverse u3a.social for discussions ?



Upcoming Online Meetings

Mind-blowing Advances in Materials Science

Speaker: Professor Mark Miodownik University College London Mark Miodownik is a pioneering materials scientist fascinated by how the stuff of our world—metals, ceramics, polymers, biomaterials—shapes human experience. His work celebrates[...]

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26 January 2026 3:00 pm - 4:30 pm

The Castle Bank Biota: a Middle Ordovician Burgess Shale-type fauna from Wales

Speaker: Doctor Joe Botting This month Dr Joe Botting will be talking about the Castle Bank Biota, this dates back to the middle Ordovician and hosts Burgess-shale type fauna. The[...]

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10 February 2026 10:30 am - 12:00 pm
Zoom,

Mysteries of Memory

Memory: What and where is it, how does it work, what can we do to improve it, and why is it sometimes so tantalisingly elusive? In this intriguing, interactive presentation, Sue[...]

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11 February 2026 10:30 am - 12:00 pm