Have solar as a energy type (rocket), batteries, and solar panels.
Be able to have solar energy a source of power for your rocket.
90
votes
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Ник Костин commented
It`s ion engine! It use some ion and realy big energy!
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Anonymous commented
Actually, if the programmer put in a ion engine then solar panels would be able to supply thrust while just using electricity.
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Anonymous commented
Electrical power can only be used to turn the rocket not propel it forward