We have all heard how this year the Earth is "supposed" to line up with our galactic core, and that we "could" be hit with a galactic pulse of some kind. Ok, so we all know about that. Why do you never hear about the galactic collision we are involved in even now. The milky Way galaxy and the Andromeda galaxy are already caught in each others gravity wells. What happens to life when the two galactic frequencies collide and therefore altered/changed?