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