what if...?

Question

if we invent a way to travel to other stars, past the speed of light. how hard would it be to navagate accurately to a distant star or planet, and what would a ship traveling faster than light look like from earth?

Answer 1

if a spacecraft were magically somehow able to travel faster than light it would appear partly visible and partly not visible. because being able to move faster than light, light could not strike the spacecraft, but the spacecraft would still be striking light so it would remain visible where light exists.

In reality, nothing can travel faster than the speed of light. but that is how it would appear...
:)

Answer 2

If you are going towards a star or planet, you would be able to see the light, since you are not traveling away from it and its light is traveling towards you.

You would be able to see it from Earth because we "see" visible light. If the ship were traveling faster than the speed of light, you would see the light, but it would not appear quite the true actual color it is because of the "Doppler Shift". This is used to track "wobble" of big distant stars when a planet (that we can't see) orbits the star. It causes a "shift" in the color spectrum when it's going away from you. (see the links below)

A good example is an approaching train's horn. As it approaches, the pitch (sound) of the horn is high, when it is even with you, it is the actual pitch, and as it goes away from you the pitch drops..

Answer 3

i think if we were advanced enough to create such a way to travel we would have a suitable solution for navigation too.

if such way of travelling would be observable we would actually see the ship travelling BACKWARDS.

unbelievable but true, cause light reflected from the ship in the distance would reach the observer EARLIER than light reflected while the ship is near.

this is why its believed not to be possible cause it would create a time paradoxon, which we think cannot really happen above quantumn scale.

In case you decide your ship is smaller then the planck length and you could navigate that .. congrats .. this would really work

based on the conclusion that your time would run backwards i can't see any difficulties in navigation, cause you already know how you had made it there, cause a few days before you travel you would already know you'll arrive

too paradox to be true ;)

Answer 4

Einestien's theory is the faster you travel towards the speed of light is that you become More massive therefore you would become infinitely massive.

Answer 5

Invisible. As it stands right now nothing can travel faster than the speed of light. Einsteins theory of relativity states matter can not achieve the speed of light as when it approaches light speed its mass will increas exponentially. The only theorised way to travel faster than the speed of light is through a worm hole. Assuming humans could build a ship that could creat a worm hole you wouldnt be able to see the ship travel as the travel would be instantaneous (worm hole theory is that you create two holes in space one at the destination point one at the departure point then travel through the holes and you are at your destination).

Answer 6

it probably wont be hard to navigate since the course will probably be charted by a computer.
a shipe traveling faster then light will probably still emit some light so it'll probably still look like a streak of light

Answer 7

Then I'd be very frightened. I think we are only supposed to travel to places like that in the "afterlife" with the Lord. Only He can make sure that I'm 100% safe.

Answer 8

Well, we can't get anything to go faster than light so forget it. I think the tough thing would be avoiding debris out there.

Answer 9

we prolly wouldn't be able to even see it........


interesting