Albert Einstein maight have been able to answer.
Transmission will always be “live” when sent. It will be delayed by the time it is received by the transmission time which is the distance divided by the speed of light. (in the same units)
Note that on the news when the story is from somewhere else on the planet, there is often a delay before the “live” transmission starts, this is cause by the transmission delay which via a satellite is about .2 sec.
Every light second away from Earth(speed light travels in a second) would add a 1 second delay.
It takes around 13 minutes for a signal to reach mars and vice versa.
Around about where the moon is on average is one light second.
It would take 8 minutes ish for a signal to reach the sun. If it went out we wouldn’t know for 8 minutes.
When the spaceship is a bit over 186,000 miles from earth the video will be received 1 second after it was generated. Double that distance and the delay will be 2 seconds.
And so on.
Light and radio signals travel at about 186,000 miles per second. That’s really all you need to know.
Everything you see is “in the past”.
Your brother likes being a pot stirrer
Scientifically...the transmission is always live. The reception is current to the receiver
But to answer your question: yes, a transmission started in Earth orbit would become more delayed the further the craft travels. You wouldn’t notice it however because you would just assume it’s still “live”, there would be no way to tell unless you sent them a message and asked for a response, you wouldn’t see them get the message until however much time passed related to how many light seconds/minutes/hours/days away they were.
Transmissions are never “live”, if by “live” you mean instantaneous. There is always a delay due to the speed of light or even the speed of sound. The further away, the longer the delay. There is even a delay due to the processing electronics or even the hardware between your ears.
On the other hand, if you are getting the transmission from a source directly in the shortest possible time rather than from a stored version, perhaps that is “live”, even if the delay was years due to distance.
But if by “live” you mean in a manner that allows for interaction between the communicants, then that is an arbitrary definition determined mostly by the patience of the participants.
Glad to be of essentially no help whatsoever.
Interesting question, but what would be even more interesting to ponder is what would happen if a spaceship crew began to broadcast live video/audio as they launched, and then accelerated to near the speed of light. Since time passes much more slowly for the spaceship crew at near light speed than it does for those on Earth, would the Earthbound viewers see the broadcast keep slowing down as the craft approached light speed, until eventually it seemed to be running at a fraction of real-time? My guess is that this is precisely what would happen, but curious if anyone has other ideas.
I think Art Bell is on at this hour.
The speed of light is finite, so the transmission will not be perfectly "live" after the ship has traveled at all -- even one inch. There will be a delay, that will increase with distance. Stopping and restarting the transmission will not affect the rate of increase of the delay.
The sci-fi juvenile novel “Time for the Stars” by Robert A. Heinlein postulated that twins could use psychic powers to communicate simultaneously if one traveled in a ship at light speed while the other stayed on Earth. Interesting idea.
There was a sci-fi movie for kids that addressed this issue of delayed or late transmissions receptions. I think it was called “The Explorers”. Pretty sure it had River Phoenix in it.
All about their communicating with an alien spaceship whose teenage inhabitants talked like people in TV ads from the 1950’s (which were the transmissions they were receiving and learning from out in deep space).
If we go fast enough, perhaps we will run into the first season transmissions of “Twilight Zone”.
Don’t forget to bring some popcorn, because “In Space, There Is No Popcorn”.
Its all relative. On earth the live video would be considered delayed, not much from the space station but from mays it would be about 14 minutes.
No. It would be from the past. Unless the transmisdion was somehow done using pairs of entangled particles in which case it would be live until you ran out of them or they underwent decoherence.
I have a better question...
Exactly how do jet engines propel space craft in a vacuum?
If you achieve the speed of light which is quite impossible your will never receive a reply least you slow down to less than the speed of light. However that is not “gonna” happen unless you are on the Stare-ship Enterprise that defies all known physics.
I personally think our galaxy and universe is full of life. Only physics is the reason we do not have contact today. In the advance of science we only came out of caves 20,000 years ago. Other species are without doubt out their with science millions of years beyond ours. They have not contacted us because simple physics of interstellar travel make it impossible. As our science becomes better we may well detect their electromagnetic transmissions. I would suspect they are thinking the same thing, “are we alone.”
But even more sad would be a species that knows they are not alone and does not really give a damn as we are so far beneath them to be nothing but strange curiosities.