Thought Provoking IAA Lecture

The last IAA was almost a fortnight ago now and was delivered in classic style by Seanie Morris who I have corresponded with on the IFAS Forum, but hadn't previously met, so it was good to put that right!

Seanie talked on the subject "Cosmic Dust: Is that all we are?". This talk covered the subject, which some would consider controversial, with an excellent combination of facts, evidence and sensitivity and a lively discussion ensued afterwards. I was particularly interested in the theory that cosmic dust allied to the sunspot cycle give rise to Noctilucent Clouds which are of particular interest to me.

Here's Seanie taking questions...