science you forgot

My friend Jeannette has published a little illustrated science book, and it's full not just of science that I forgot, but stuff I never knew in the first place -- like the centre of every galaxy being a supermassive (yes, that's the term) black hole, ours being known as Sagittarius A. Or that the dark spots on the moon are called Maria. The cover is a nice heavy matte, the insides are super glossy (my term) and it's only five dollars. Stocking stuffer!