filling fast

It's astonishing to me. I announced my Stellarium intro course (on 30 Nov) and it immediately filled up with a waiting list forming. So a couple of days ago, I announced a second date (28 Dec). Boom. It filled up. Now there's a waiting list forming again! Then I offered to run an intermediate level course (25 Jan). Blam-o! It's nearly full. Wow.

I had no idea...