Here is the full list of all 21 Cosmos: Stella Returns achievements.
Complete the tutorial.
Collect 10 Stars.
Collect 10 mineral for each color.
Buy a Shield in the distributor.
Find a Satellite Navigator.
Beat the first Boss.
Beat the second Boss.
Beat the third Boss.
Beat the fourth Boss.
Beat the fifth Boss.
Beat the sixth Boss.
Beat the Last Boss.
Don't give up!
Buy Barrier power up.
Save the progress.
Buy the Scanner.
Press a red button.
Destroy a wall.
Read a message in a Computer.
Collect all COSMOS card and back on main menu.
Complete the game.