In order to get in and out a planet, some form of propulsion is necessary.
Category:Propulsion
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116.111.185.163 • 2 days ago
116.111.185.163 • 2 days ago
116.111.185.163 • 2 days ago
116.111.185.163 • 2 days ago
In order to get in and out a planet, some form of propulsion is necessary.