A stunning double rainbow over the Dish on Wednesday afternoon lights it up ahead of the "Astronomy from the Ground Up! teacher workshop, starting today and running over the weekend. Coming from as far afield as South Australia the participating teachers will learn about the latest science and technology of the Dish and our other telescopes. They'll also learn about some great educational resources and activities plus how to implement them effectively with their students. Oh, and they'll also have an awesome tour of the Dish.