Universe ?? So in books and pics online, you see the solar system in a single plane, if you want to travel great distances you use other planets gravity to swing you out there. What if we wanted to travel in ANY OTHER direction, could it be done? I heard that its not practical to send manned missions to anywhere really because of the long duration, radiation would kill you. Why not go faster? No gravity so build larger spacecraft, more fuel, burn longer? Am I missing something here? (disregard the cost to travel) Im sure its not cost effective but regardless, even for sats and other probes why not make them go faster to get more info sooner? Who wants to wait 20 years to get some pics of something with technology that is at garage sale for $1.00?