text: is time travel possible? if time has no beginning and no end, wouldn't that make it a circle?  if it is a circle, wouldn't it be possible to come back around to the start? time travel is completly possible.   when albert einstein released his theory of special relativity, he laid the foundation for the theoretical possibility of time travel. as we all know, no one has successfully demonstrated time travel, but no one has been able to rule it out either.   if you travel at the speed of light, time stops for you, not for other people. so say you travel at the speed of ligt for a week in space, when you come back to earth youll find that its been maybe 100 years in the future.  i also know a russian astronaught (<--- spelling wrong) that traveled a fraction of a seconed in the future. this is because he was aboard the russian space station. if you travel fast enough for a long period of time its possible.  there is a scientist that is building this machine, its suppose to be able to send particles into the future or past i forgot, but when this person turns the time machine on, he could start getting messages from the future.  but yes time travel is possible.