what do you mean they can’t get rid of heat? radiators exist
https://en.wikipedia.org/wiki/External_Active_Thermal_Contro...
All that gets you 70kW of cooling. Radiating to vacuum isn't very efficient.
Space radiators are not very efficient due to lack of airflow in space.
https://en.wikipedia.org/wiki/External_Active_Thermal_Contro...
All that gets you 70kW of cooling. Radiating to vacuum isn't very efficient.