Here is the full list of all 16 Crowded Blue Dot achievements.
Reach a population of 100
Reach a population of 200
Reach a population of 400
Reach a population of 800
Reach a population of 1500
Reach a population of 2500
Reach a population of 5000
Reach a population of 10000
Reach a population of 50000
Reach a population of 100000
Reach a population of 10000 with harsh difficulty
Get 100% Happiness
Get 175% Happiness
Have 999999 money.
Complete 39 researches.
Complete the tutorial.