If you travelled twice the speed of light to the closest star and could see the earth through a telescope,?

Question

would you be looking at the earth in the past ? Serious replies please...

Answer 1

Yes...
Good thinking..
Good question..
You would have traveled past the light which left earth before
you left so you would be looking at light which left in the past..

Answer 2

If you could travel faster than the speed of light (which you cannot), You would have travelled faster than the light coming from the earth. So you would see earth in the past.

Answer 3

Yes, you could then see the earth as it was some time in the past. But of course such travel is not possible.

Answer 4

Yes because the light would take however long to get there. When you look at a galaxy you are looking at the past. That's why quasars and whatnot are so incredible to astronomists becasue it's a look into the past, basically.

Answer 5

One problem is that the quantity of ability necessary to boost up an merchandise of sensible mass to a speed coming near that of light is really tremendous. A spacecraft able to carrying human beings for a sturdy length of time ought to weigh a minimum of a few hundred tonnes. apart from such issues because the Saturn V, the vacation engines and the Russian heavy lifters, i do no longer imagine there is an engine made that may accellerate this variety of mass at any tremendous cost. And those rockets basically burn for a minute or 2. human beings are used to residing at one g, it quite is the acceleration as a results of gravity on earth's floor. it truly is about 9.80 one metres in holding with 2d in holding with 2d. That places a reduce on the sustained acceleration you may have, even with the undeniable fact that i'm positive human beings might want to get used to assert 12m/s/s. a lot more desirable than that for lengthy sessions and also you're in all probability to have well being issues. in case you sense like it you may workout habitual how lengthy it takes to get on the breaking point of mild speed at say 10 m/s/s. it really is quite a lengthy time period, quite a few months. the subsequent problem is that when you commence geting close to mild speed relativistic outcomes click in. The mass of your spacecraft begins to extend and it takes more desirable skill to keep up the accelleration. yet even previously that you run right into a large problem. once your speed receives fairly extreme, the so noted as vacuum of area begins to seem slightly more desirable like air. Collisions with dirt debris will be fairly risky, and hitting a gas cloud might want to be like a diver abdomen-flopping right into a pool. On correct of that, common mild radiation mind-blowing your craft is blue shifted into the ultraviolet or far more desirable, searching on how briskly you're going. more desirable or a lot less harmless ultraviolet and X rays get blue shifted as a lot as pretty risky gamma and better. At fairly extreme velocities the cosmic microwave historic past itself might want to change into risky. yet in case you'll confine your self to assert 50,000 kilometres in holding with hour, then such velocities are interior our carry close at present. per chance no longer that a lot, yet a severe fraction of it. the problem is the flexibility source. There looks no option to nuclear fission reactors as a correct mover, water can make a sturdy propellant. Steam engines in area!

Answer 6

There once was a pilot named Dwight
whose speed was much faster than light.
He took off one day
In a relative way,
And returned on the previous night.

Answer 7

Sounds about right... That's science fiction at this point because nothing can exceed the speed of light.