I'm not doing a report but unfortunately I have no life, so here is some info about black holes for you. (I'm afraid it will be a little late for some of you)... *they can be any size *their escape velocity is 180,000 m/s, that is, even light cannot escape them *they have a never ending collapse *if you get pulled into one, as you near the event horizon or Swartzchild radius your time almost stops and your mass increases infinitely *the above is generally not a good idea to do *theoretically, when they collapse so far that their radius is 0 and their density is infinite, it is called a singularity and theoretically it would become a white hole, something that only 'spits' things out instead of only 'sucking' them in. the saddest thing is i'm only 14 but i hope i helped someone!