What Is…?. What is a Meteor? What is a Comet? What is a Star? What is a Nebula? What is an Open Cluster? What is a Black Hole? What is a Quasar? ? ? ?
Class 6 : Formation of the Moon and the nature of modern impactors Finish off talking about the Moon Recap possible formation theories. Digression into.
Today is Tuesday, May 19 th, 2015 Pre-Class: Where do we find asteroids in our solar system? Comet 67P/Churyumov-Gerasimenko seen from.
What
