Here is the full list of all 38 0RBITALIS achievements.
You've completed the Theta Sector!
You've completed the Iota Sector!
You've completed the Kappa Sector!
You've completed the Lambda Sector!
You've completed the Mu Sector!
You've completed the Eta Sector!
Let there be light.
You've completed the Zeta Sector!
Remain in orbit for one hour!
Remain in orbit for thirty minutes!
The first artificial satellite completed its orbit!
Remain in orbit for five minutes!
You've completed the Epsilon Sector!
Remain in orbit for one minute!
You've completed the Beta Sector!
You've completed the Gamma Sector!
You've completed the Delta Sector!
Every day a new challenge.
You've completed the Alpha Sector!