is time travel possible?

Answers

Of course- Henry DeTamble does it ALL the time in the Time Travellers Wife! And Jodie Whittaker's about to start doing so too isn't she?...

Well, in 'real life', I'm not sure. But, according to NASA, it's possible to travel forwards in time, as long as you reach 99.5% (or something close) to the speed of light.

This probably explains it far better- "Travelling forwards in time is surprisingly easy. Einstein’s special theory of relativity, developed in 1905, shows that time passes at different rates for people who are moving relative to one another - although the effect only becomes large when you get close to the speed of light. If one were to leave Earth in a spacecraft travelling at an appreciable fraction of lightspeed, turn around and come back, only a few years might have passed on board but many years could have gone by on Earth". (source- http://www.physics.org/article-questions.asp?id=131).
So apparently, if you left earth when you were 15, travelling around 99.5% of light speed, you'd only have 5 birthdays, so you'd get home when you were 20. But, unfortunately, your friends and classmates would have had 50 birthdays and would now be 65...

We haven't reached the speed of 99.5% lightspeed yet (what a relief for all those anti-wrinkle cream companies!). Possible yes, but perhaps not achievable, at least in the near future. Travelling back is much harder- we'd need to travel much faster than the speed of light to do so, which really isn't possible.

by MoCCconsultantGabrielle on August 27th at 11:19am
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