As we know Human Communication taking place between Man in space, Man on Moon, Man on Mars (Future exploration) with Human beings on Earth planet where we are living with the help of control stations controlled by space agencies from different countries.
Is this also very much possible as per the scenario/s given below with advancement in space science and technology?
Human beings in one planet communication with Human beings in other planet excluding planet earth.
Of course, the exploration of crewed missions takes place taking into account whether life exists on other planets than planet earth, mars (possibility).
Just an assumption, that if life exists on other planets Or even if Life do not exists on other planets,what can be done in case a Human being on Mars planet would like to communicate with Human being on say Jupiter planet?
Mars - Jupiter
Mars - Uranus
Mars - Saturn
Mars - Venus
Mars - Pluto
Mars - Mercury
Mars - Neptune
Jupiter - Mars
Jupiter - Uranus
Jupiter - Venus
Jupiter - Mercury
Jupiter - Pluto
Jupiter - Neptune
Jupiter - Saturn
and all other permutations & combinations of one planet communication with other seven planets excluding earth.
So no direct communication between two planets but only possible with planet earth as interpreter or translator?
Mars & Jupiter would like to communicate with each other.
Mars - Hello - Earth
Earth - Hello - Jupiter
Jupiter - Hi - Earth
Earth - Hi - Mars
So no direct communication possible of Hello, Hi between Mars & Jupiter planets possible?
To simplify my question, in case Humans land on both planets Mars & Jupiter via earth planet, can they directly communicate with each other without taking assistance of Humans on planet Earth?.
Assumptions or even could taken as a fiction movie for life existing on both planets mars & jupiter as well as in all other planets of solar system for the above scenarios with permutations & combinations.
Interplanetary telecommunications setup in solar system.
If the astronauts visit the planets Jupiter, Venus, Saturn, Mercury, Neptune, Uranus, Pluto, will they be able to survive for specific time period in terms of days, weeks, months,years theoretically according to space & astronomy study?