Here is the full list of all 11 REVERSE SIDE achievements.
Ideal joining.
Find a photo of the last crew.
To finish process of joining of the spaceship.
Pass the test at the cosmonaut training center.
To finish chapter: "Arrival"
To find a signal source.
To finish chapter: "Preservation"
To finish chapter: "Zefanit"
To finish chapter: "Heritage"
To finish chapter: "In a shadow"
To finish chapter: "The forbidden contact"