what happens at the end of such a trip, when the propellant is exhausted, and can no longer evaporatively cool the core?
it has to contain enough propellant to come back to Earth orbit to refuel the propellant coolant?
even if the core is throttled to its lowest levels, it will still produce heat in the vacuum of space? or will radiative cooling balance the remaining production of heat?
it has to contain enough propellant to come back to Earth orbit to refuel the propellant coolant?
even if the core is throttled to its lowest levels, it will still produce heat in the vacuum of space? or will radiative cooling balance the remaining production of heat?