Here is the full list of all 64 Out There: O Edition achievements.
Scan a planet
Board a huge ship
Build a Death Seed
Build the Ansible
Board a weird ship
Have your oxygen below 5%
Have your hull below 5%
Meet the Judge Architect
Find the cathedral
Know all alien races
Build all Space Folder upgrades
Jettison a human
Probe a star for fuel
Talk with 15 alien races
Receive a SOS
What a huge ship !
Learn all the alien words
Terraform a planet
Find an Artifact
Dismantle your space folder
Meet the Enemy
Rule 140 star systems !
Encounter 10 alien races
Find the Crescent ship
Map 120 star systems
Use the Synergy
Discover 80 star systems
Receive a special call
Bring back an alien on its homeworld
Meet 5 alien races
Fix something with Omega
Receive some Omega
Break your drill
Dig some gold !
Learn how to say "Love" in alien
Risk everything and live to tell
Board a new ship
Set your ship at 100% resistance
Find a yellow ship
Set your ship at 100% efficiency
Set your ship at 100% ecosystem
Orbit a Star
Have an equipement destroyed
Have your fuel below 5%
Orbit a black hole !
Visit 30 star systems
Approach a Black Hole
Meet an Alien
Drill an inhabited planet
Explore 10 star systems
Build a Space Folder
Board a space station
Travel through a black hole
Reach the Iron Star Station
Find a way back home
Rule the Enemy
Have the nostalgia of hamburgers.
Purge a star system ruled by the Enemy
Board a strange ship
Build a telescope and its 2 upgrades
Reach the very last star
Save your kind
You have gathered the interstellar alliance
You met with 30 alien races.