Here is the full list of all 10 Intergalactic Bubbles achievements. It takes around 15-20 hours to unlock all of the achievements on Windows.
Survive all Andromeda levels.
Survive all Milky Way levels.
Survive all Orion levels.
Survive all Medusa levels.
Survive all Pillars of Creation levels.
Get 3 stars in all Milky Way levels.
Get 3 stars in all Andromeda levels.
Get 3 stars in all Orion levels.
Get 3 stars in all Medusa levels.
Get 3 stars in all Pillars of Creation levels.