Exoplanets

Alley has been learning about our solar systems planets in school. She loves it! She finds videos on line to learn more - did you know Saturn has Shepard moons to keep the rings together? And she has a theory about dark matter. Last night we went to the U of M to their public lectures on space. It was about exoplanets - planets in other solar systems that have been discovered. We then went up on the roof to look at Jupiter and 4 of its moons. I asked the grad student giving the lecture why bettlejeuse star in the constellation Orion was red - he started to answer then Alley finished saying - it is a very old star that has become a red giant and means it will go supernova eventually. I guess I should have asked my 9 year old.