Question about Galaxies.  LiptonCambell: Because of the Big bang, more or less. I mean, sure, yes, galaxies do eat up each other. But since all the Galaxies are expanding, they will eventually stop running into each other. But yes, Galaxies do join each other. en.wikipedia.org/wiki/Interacting_galaxy In fact, its believed that in 4.5 Billion years, the Andromeda galaxy will collide with our own. Luckily, by that point Earth would be already nearly destroyed by the Sun aging jeletel: Yes I find that interesting also. Do you know if its the force of gravity bringing Andromeda towards the Milky way? Cause it seems strange that if theres that kind of gravitational force that the planets in the Milky way dont get drawn into the center. Maybe the reason Andromeda and the Milky Way are getting closer is different reason then gravity though. LiptonCambell: Wow, thats pretty profound thought......to be perfectly honest, I thought it was gravity too, but you do have sound logic.... Still, heres an awesome, short video explaining alot of it- lots of interesting facts. Like how we have smaller galaxies orbiting our own, and how currently, we're tearing apart another galaxy; jeletel: It could be Andromeda is moving faster or slower and thats why It is getting closer. Cause its hard to imagine the Milky Way moving an entire Galaxy but a planet like Earth stays on the edge of the Milky Way. I have been thinking and wonderig if its posible that the Universe might act more like a Galaxy and the reason most Galaxies are in the red specturm and moving away is simply because that are Galaxy is moving faster then some and slower then the others. Not that I believe that by any means its just a thought exsperiment I have been thinking about. Thats a good video, we only have 2 billion years to get out of the Milky Way that will be a challenge. (Edited by jeletel) LiptonCambell: Lol well we only took about 10,000 years to get to space- whats another 2,000,000,000? | Science Chat Room 3 People Chatting Similar Conversations |