Possibilities of Time Travel?

Although Einstein's theory of Special Relativity shows that time is relative and travel is theoretically possible, in the physical world is believed to be impossible because in would require a velocity greater than the speed of light to achieve.

As a particle approaches the speed of light, the effects of gravity on its mass would make it too heavy for any known force to enable it to continue to accelerate. Actually, we experience time travel continuously but only in one direction –forward.

So this applies to particles with mass. Thought consciousness, presumably has no mass so is it possible, at least in theory, for our consciousness to experience time travel into the past? Mystics through the ages have reported an ability to move through time. This is even hinted at in the Sci-Fi show, “Lost”.

Here’s an interesting article about a real-world attempt to build a Flux Capacitor for time travel.
The popular film, "Back to the Future" was based on this idea. Any rocket scientists out there?

http://www.wired.com/thisdayintech/2009/11/1105back-to-the-future