My son really enjoyed catching the Tube and then the DLR as we got to sit right at the front (DLR trains don’t have drivers). To be honest, this is a really good activity in itself – anything else is a bonus.
Greenwich is a really nice area in south east London – it has a big park and some quirky shops etc. We walked by the Cutty Sark on our way to the Royal Observatory which is something that we should do next time.
The show itself was about photography of stars and planets (amazing) but unfortunately we bought my son a little cake in the cafe while we were waiting so he got a bit loopy for the next hour after that. I think he was interested in the show. He was definitely interested in this meteor, which is apparently 4.5 billion years old.
One thing I hadn’t realised is that metals like gold and silver are what results when old red giant stars explode. I did find this article on it, if you are interested. I like to think I’m clever but I can’t made head nor tail of it.