So lets say your ship is 1 lightyear out, or whatever. And let's say it has stopped moving there so we don't have some weird infinite red-shift thing going on. So it is seeing photons which left earth a year ago, and if you record the signal and send it back it will take another year to get back. So assuming an infinitely powerful, perfect telescope, you might as well have kept the telescope on earth and just put a mirror there.
Unless what you meant was to put your CCD on the front of the ship, and catch up with the photons, snow-plow style. That of course forgets that the speed of light is constant in all reference frames. No matter how fast you are moving, the speed of light is always the speed of light. |
