Mission 18, named Atmospheric Probe, is your first encounter with GRN (or the Green planet). You'll need to put a Survey Satellite into orbit around the planet on one ship, then re-enter an Atmospheric Probe into/onto the atmosphere. The antenna on the satellite must face the surface of the planet, and the probe's antenna should face the sky.

These 2 ships should be launched relatively quickly to each other in order to complete the mission in time.

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