Scientists Say We Can’t Travel Back in Time

Scientists are now saying that it would be a lot easier to travel to the future than the past. Professor Greene, a consultant for Déjà Vu says, “If you want to know what the Earth is like one million years from now, I’ll tell you how to do that. 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 don’t know about the past, but if what that guy says works without dying, then I think it’s possible to travel into the future. A lot of worries in time travel come from the supposed dangers at such high speeds. But we don’t really know how fast we are traveling now. I’m currently sitting, but then the earth is spinning at around 800mph, the earth orbiting about 66,600mph around the sun, and the sun around the galaxy, the galaxy around the…
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March 16 2007 04:12 pm | Science

4 Responses to “Scientists Say We Can’t Travel Back in Time”

  1. David Charles Levasseur on 19 Mar 2007 at 7:23 pm #

    Author Fred Allen Wolfe wrote a great hypothesis on time travel in a book called Parallel Universes. The main obstacle to overcome would be to harness enough energy(much Like the Doc) in Back to the future. The book makes the comparison to space cowboys that lassoo up 6 or 7 Supernova’s and than you begin to believe that time travel is definitely a possibility.Of course if their are an infinite number of parallel universes anything is possible. But some mystical religions such as certain types of buddhism claim to have been capable of time travel for centuries, so, I guess if you go there….You can go anywhere. Interesting question though.

  2. Keith on 19 Mar 2007 at 8:06 pm #

    theories on parallel universes are way cool… I’ll have to look into that book

  3. David Bradley on 20 Mar 2007 at 2:49 am #

    That’s time dilation and it has been proven by taking atomic clocks into space. In fact, every astronaut that’s ever left the surface of the earth is minutely (pardon the pun, it’s not that big a dilation) younger than they would otherwise have been had they stayed on earth.

    db

  4. Sebastian on 20 Mar 2007 at 10:24 am #

    Because of time dialation at speeds approaching the speed of light, all you really need to travel forward in time is a vessel that can bring you near the speed of light. Now one of many problems is that once you’re there, there is no way back, that we know of. You can arrive at a 2000 year older, fallout devistated earth… Now that wouldn’t be very pleasant.

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