Comment by alfromspace

Then it doesn't violate any fundamental laws of existence, does it? We're just talking about receiving delayed images of events. The ship isn't engaging in backwards time travel by contacting Earth after seeing its call being received, because Earth knows it already placed the call. No information from the future is being conveyed to Earth, and the third party isn't actually able to affect the "cause" after seeing the "effect", because the cause is over and done with.