Reply to post: Re: EQUULEUS

Japan successfully propels steam-powered spacecraft

DJO Silver badge

Re: EQUULEUS

Insulation can and is added but you will still need active heating unless your payload is constantly powered up. Insulation adds weight and volume both of which are at a premium.

Every space probe is different and has different requirements and restrictions, the balance between active heating and passive insulation will be optimised for each use case.

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