The festive season is upon us and with it comes the usual round of parties, late nights and general over-indulgence. For many people, the Christmas h(...)

The International Year of Light has already seen a number of events in Ireland, including the lighting of the Spire in Dublin which was timed to coincide with the St Patrick’s Day festival. Photograph: Aidan Crawley

It’s the International Year of Light. That’s not some airy-fairy notion about positivity; it’s a chance to focus on the science of light. In 20(...)