Traveling back in time is impossible

According to this Fox News article, it is impossible.

If you can recall, I more or less touched up on the possibility of traveling back and forth inside of time in the past. This article only mentions a 10 dimension universe, leaving out the 11th which consists of the membranes.

Big Foot knows how to do it.

One of the guys interviewed in the article, Michio Kaku, is on the Discovery Channels all the time when they talk about space and quantum mechanics.

"Wormholes are the future, wormholes are the past," said Michio Kaku, author of "Hyperspace" and "Parallel Worlds" and a physicist at the City University of New York. "But we have to be very careful. The gasoline necessary to energize a time machine is far beyond anything that we can assemble with today's technology."

I think this is him dumbing it down for everyone because they wouldn't use gasoline to fuel an experiment like this. Anti-matter, or at the very least, nuclear power would be used.

"If you want to know what the Earth is like one million years from now, I'll tell you how to do that," said Greene, a consultant for "Déjà Vu," a recent movie that dealt with time travel. "Build a spaceship. Go near the speed of light for a length of time — that I could calculate. Come back to Earth, and when you step out of your ship you will have aged perhaps one year while the Earth would have aged one million years. You would have traveled to Earth's future."

I've never seen this movie, but it would be an interesting plot.

Something I've always wondered. Say you were capable of traveling at the speed of light (it is impossible now because mass expands as speed increases and to travel at the speed of light means that the object would be the size of the universe itself) and you wanted to go to one of the stars that you see in the sky. We all know that the the time it took for the light of those stars to get here, they died. But, if we could travel at the speed of light, or perhaps faster than, we should be able to arrive at those stars, however many years ago while they were still alive. Thus traveling backwards in time.

And after writing the last, it dawned on me. Because E=mc squared... if we send a typical electron near the speed of light, it should gain mass (m), therefore gaining energy (E). I wonder what the cost is of sending an electron or a neutron at the speed of light (or near it).

Ok, I've got to get back to work.

P.S. There are some theories out there right now that suggest if we could create a bubble outside of time and space, then we could send it faster than the speed of light, therefore, allowing travel back in time.