Anyone watching this series?..
… "In this major new landmark series for BBC Two co-produced by the Open University, Professor Brian Cox tells the extraordinary life story of our solar system".
I find these programmes compulsive viewing and I understood most of it, which makes me think this was designed to be an idiots guide to the planets. It's on BBC 2 on Tuesday evenings, repeated on Saturday evening. Well worth a watch if you're into this sort of thing.