We have been a bit slow to post this (for numerous reasons) but here's our Sixty Symbols video on antihydrogen.
It follows the announcement that scientists at CERN had trapped a small amount of the elusive "substance".
An interesting point raised by Professor Mike Merrifield.
While acknowledging it as a significant breakthrough, he pondered if it received more publicity than one might expect because of the Dan Brown book (and subsequent film) Angels and Demons.
In that tale, a container of antimatter is stolen from CERN and used for evil purposes.