Hello everyone, I have a question that bothers me quite some time now,and it would be great to get an answer. I have been reading some time now about black holes,and photons,and how black holes attract photons and different theories says it can or cannot escape the black hole,and there`s some things that aren`t clear to me: 1.How can a black hole attract a massless particle? 2.How can we see the black hole if he "swallows" the photons ? 3.quite general - are black holes confirmed as "anti - matter" or is it an unconfirmed hypothesis? So many thanks, if the question is not appropriate to this section I would be grateful if one of the moderators could move it. Danny.