Light and the Universe

Can we travel at the speed of light and if so how far in the universe can we go or can we go to other universes or is there only are universe or are we an advanced program created by another civilization?  The video below talks about traveling the speed of light and they reality of it.  We can never travel that fast, unlike most sci-fi movies, because we have mass and mass can never travel at that high of a speed.  The other question posed in this video is what is the universe and can there be many different universes.  Both of these questions go back to the original question for this blog,  What lies beyond where man has not gone?