get Chandra time. Same with Hubble and all the large telescopes... There is so much to do in astronomy! steve: You mentioned that there's a black hole at the center of the Milky Way. Exactly at the center? Do most galaxies form around black holes, or are centered on them? riyanatarajan: Yes, there is a black hole at the center of the Milky Way and pretty much every galaxy in the Universe. Since black holes are massive they do sink into the center although they do jiggle around a bit and dont stay still! It does appear that the formation of the black hole and the stars in a galaxy are intimately related, however, not easy to determine what came first! unnylover2: If this is a stupid question, don't post it. I was wondering if we know what is on the other side of the hole? Kevin: There isn't really another "side". At its center the black hole is just a point where all the mass is concentrated as far as we can tell. Jason (moderator): For a good primer on the basics of black holes, check out: http://science.nasa.gov/astrophysics/foc\\... Jason (moderator): We're working to answer your great questions. Keep them coming! To submit your own question, please type it in the box at the bottom of the window and click the 'Ask' button on the right side of the box. Thanks for your patience as we answer your questions. Janus: Is there any evidence of multiple galaxies orbiting around one