Catching our tail

We're almost there, still nipping at our own tail, so the annual journey around the sun is almost complete, 364-1/4 days we have been traveling the more or less circuitous route, only to arrive at our beginning. Well, not quite, perhaps arriving at the beginning of one circle, yet we and the sun have been together on another journey. Together with 200 billion other suns we are swirling around within our Milky Way galaxy. And the Milky Way galaxy is heading ... where? Some astronomers think on a collision course with the Andromeda Galaxy. In 3 billion years. Be ready.