Putting together all these photos in the order of increasing the label (i), the traveler should see a movie of the Earth backward in time. for step number (i) which produce the photo labeled as (i) Let's consider the case of moving away from Earth. Stop again 'almost suddenly' for 1ns to make a picture of Earth, and label the photo as (2). Stop 'almost suddenly' for 1 ns and make a photo of Earth and label the photo as (1). I had in mind something like this : - Travel FTL few sec. So the answer to your question as you stated it is neither yes, nor o maybe since you asked what would the laws of physics tell you if they're wrong. The reason it works is because the wormhole is a shortcut in space between two positions in space. However this isn't really traveling at the speed of light since the speed of the body as measured by spatial dispacements never exceeds the speed of light. As JP explained, using general relativity it might be possible to cheat physics and skip over the space between two points using a spatial shortcut known as a wormhole. It can be shown using special relativity that if a body is subjected to a finite force then the energy required to accelerate it to the exact speed of light is infinite and thus impossible. Do search using the term "Resource" and search for articles giving experimental results. Emperical evidence can be found in the physics literature, namely the American Journal of Physics. In this web page I show that the kinetic energy of a particle moving at the speed of light is infinite. See In this web page I show that the inertial mass of a particle becomes infinite at the speed of light and imaginary when faster than the speed of light, meaning that it's impossible for a particle which starts out moving at less than the speed of light will never move at or faster than the sspeed of light. I show that such a particle comes arbitrarily close to moving at the speed of light but never equals it. I've created a website to teach special relativity at In the following web page A charged particle subjected to a uniform electric field experiences uniform acceleration in its own frame of reference. If you want to understand this then you need to learn special relativity and that means learning a ton of math. The emperical evidence comes from many experiments and is constantly being demonstrated as true in particle accelerators all over the world. The source of his information is the special theory of relativity. He did give you "real information." What you basically asked was "What does physics predict/say if you did this thing which is impossible according to physics?" That's not a meaningful question. However, the most likely scenario is that there is no Star Trek Enterprise ship to give free FTL rides while the ship is stopped, you will see yourself on Earth 1 year before leaving iii) the ship returns at FTL - you should see fast forwarding during 1 hour of FTL travel back to Terra, the 1 year of history starting from the time you left minus 1 year to the time you arrived + 2 hour. it is no longer FTL) at a distance of 1 ly from Earth. Your question was: how and at what time will you see the Earth? My guess is that there are 3 situations: i) while traveling FTL away from Earth: - probably you will see Earth going backward in time. Let's fantasize that somehow those sensors can capture photons even when traveling FTL. Also, let's assume that the ship' sensors observing the Earth are based on capturing photons that Earth emits. Quote from: flr on 06:03:42 Now back to your question: Since it is more SF than science, let's fantasize (for argument only) that Star Trek Enterprise ship will give you 1 hour free FTL ride taking you 1 ly away from Earth. Now back to your question: Since it is more SF than science, let's fantasize (for argument only) that Star Trek Enterprise ship will give you 1 hour free FTL ride taking you 1 ly away from Earth.
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