Here is the full list of all 21 Earth Space Colonies achievements.
Survive five disasters
The Survivalist
Destroy enemy tanks
Armed to the teeth
Train ten troopers
Terraform Mars
Build Hotel
Destroy invaders
Colony population is 1000 people
Land on Ganymede
Launch ten rockets
Build two nuclear powerplants
Eliminate enemy soldiers
Destroy two dropships
Destroy enemy fighters
Build military base
Build Observatory
Land on Ceres
First human on Mars