I believe that this post is mainly concerned with Astronomy, but if it should belong somewhere else then please forgive me. In laymans terms, a black hole is a collapsed entity with a gravitational pull so strong that nothing can escape it. Light, planets and stars are all pulled in. My first consideration is if whether time can also be pulled in or even be altered on the edge of the event horizon. Newtons thrid law states, again in laymans terms: "Every reaction has an equal and opposite reaction". So, if a black hole sucks everything in, why can't there be a white hole that spews everything back out? Light, planets and stars. Even time. This white hole is the equal and opposite reaction for a black hole. Say if the Earth was sucked into a black hole. We don't know what would happen. We could all be subject to spaghetification, which occurs on the event horizon, or we might not. But, if this hypothosis is correct, and there is a white hole at the "end" of the black hole, then when Earth is spewed back out it should contain all the same matter as it did when it crossed the event horizon, even if it has been altered through compression or some other means so that it no longer resembles its original form. This could be a form of time travel or long distance travel, assuming time is sucked in and spewed out of black and white holes respectivly and the matter spewed back out is still in the same shape and condition as it was when it crossed the event horizon. Any thoughts/criticism/backing-up of the mind of a wandering student would be greatly appreciated.