If you travel faster than light, what happens?
What do you think what would happen?
What's your theory?

I suppose you only see the darkness, since the light hasn't reached your position yet...

time travel ?! time slows down ?!

This.

I think the common conception is that you'd arrive in a time before you started, so time travel happens.

If you believe in Einsteins theory of relativity, time is relative to speed and stretches as you get faster. So you'd have to use a big amount of energy to get even near light speed (speed depends on the definiton of time) and can never reach it (light particels are pure energy so there is no real matter thats being accelerated). By Energy = Mass*Lightspeed² you can make energy out of matter but it would take more than the universe to accelerate you to lightspeed.

This. There was once a NatGeo documentary about this, it happens that the speed and energy would be so big that you wouldn't survive the change and just disappear.

I read somewhere a long time ago that if something with a mass was able to travel at the speed of light or faster (say a spacecraft or think of a star ship in Star trek going at warp speed in real life), you'd get infinite mass and create a black hole. No idea how true that would be though.

To be honest I think you would die. That simple.

I heard that some particles travel up and down lightwaves, meaning they must go faster than light. But I'm pretty sure I missheard or its just not true.

The general formula is lenght / time. The speed of light is 299,792,458 metres per second, so we would need to accelerate time, and therefore we would first have to time travel. It's definetly an interesting subject.

So how about time travel? Would that be possible?

See, I always understood that the speed of light was relative to the position and speed of the observer. So from an onboard perspective, you would never reach the speed of light. From an observer's perspective, you would probably stretch and vanish (meaning Star Trek got something right! Well, that and the existence of iPads). Also, things wouldn't go completely dark. You would still see light from whatever was in FRONT of you.

Anyone heard that they think they've found a particle which might move faster than the speed of light? Pretty interesting stuff.

Really? Hadn't heard about this. You're not talking about tachyons, are you?

Probably

http://www.reuters.com/article/2011/09/ ... CW20110922

But I've seen first in my local newspaper (Diário do Pará)

I read an old theory somewhere that if you went as fast or faster than the speed of light you would be converted to photons.

Wouldn't the conversion of matter to energy cause a MASSIVE explosion, though? With that theory, we're essentially back to "break the speed limit and you die".

I think it'd just cause a rapid and extreme change in temperature.

Well, first we would have to "Make it so"…

And then we would "engage"!

Well, if you travel faster than light, "Vulcans" will take notice

Or the Empire will object.

But the question is where would you be once you slow down? Same time?

Well for once here is the answer keep in my this is my opinion or educated guess as it were guys.

The Speed of light is relative since it will always differ when in relation to the gravitational bodies around thus at any given time it is not constant. In other words if I were to go past a black hole the speed would gyrate and fluctuate (and time) as the black hole is NOT governed by the laws of physics to be frank. Now given the fact that the gravitational forces would rip anyone apart before popping out thus you would die in a variety of ways. I would say time travel is possible however not in the amount worth the effort.

Timetravel is impossible , sorry guys . For that you need a worm hole if it exists! If you travel faster than light nothing special happens, you just see the world different. Just last month we found particles , which travel faster than light. After the Big Bang any particle traveled faster than light

Have you got a link.

Googling now...

EDIT: This news article from 2 months ago: http://www.guardian.co.uk/science/2011/sep/22/faster-than-light-particles-neutrinos