Here is the full list of all 69 The Long Journey Home achievements.
Encountered all alien races at least once
Won a round of Jassikan's Teeth
Brought all eight bounty hunting targets to justice
Defeated an ancient galactic evil
Collected a sample of every animal in the galaxy
Found all of the galaxy's relics
Collected a sample of every plant in the galaxy
Won all available trophies and contests in the galaxy
Exposed a galactic conspiracy
Helped spark the Wolphax Rebellion
Ejected desperate alien refugees into space
Survived drifting through a starsystem for 10 minutes without colliding with anything or injuring the crew
Won the Wolphax Grand Tournament
Let Squire Temrach have his victory
Discovered a cure for Kirsten's cancer
Said what the whole galaxy was thinking
Visited and escaped one of the galaxy's most dangerous planets
Failed before even getting out of Sol
Deployed an illegal gate hacking device
Sold a crew member into Ilitza slavery
Learned a dark secret about galactic history
YOU KNOW WHAT YOU DID
Became infested with 20 Kliktiks at once
Made 999 credits in a single trade
Repaid a gambler's debt in full
Transported 5 aliens aboard the ship at the same time
Reassembled the alien warlord P'tah
Collected all of the Glukkt VR experiences
Tamed an adorable space pet
Made it back home without firing a single shot in Rogue Mode
Made it back home after attacking every alien met in Rogue Mode
Helped the Cueddhaest ascend to the Nextplane
Discovered an alien brothel
Made it back home without losing any Landers in Rogue Mode
Made it back home without healing any crewmembers in Rogue Mode
Made it back home without installing any new technology in Rogue Mode
Made it back home in Rogue Mode
Made enemies of everyone in the galaxy
Destroyed the Final Gate
Discovered a distant piece of Earth history
Became allied with the Raxact Horde
Sampled 5 foods or beverages in a single Journey
Collected and kept 5 alien relics
Dared take a trip through a black hole
Didn't bring enough bug spray
Brought your whole crew back home
Brought at least 15 souvenirs back to Earth in one mission
Brought the Daedalus-7 back home
Whatever you were thinking - no!
Left the Final Gate open
Visited at least one ruin from every ancient civilisation
Survived all the Cueddhaest Sermons
Created a wormhole
Found the perfect planet for an archeologist
Accessed the Entrope database
Flew too close to a star
Docked at a Raxact Black Market
Double-checked the moon landings weren't a hoax
Visited all types of starports and cities in the galaxy
Met all ship types in the galaxy
Visited all of the galaxy's biotopes
Solved all of the galaxy's current problems
Brought the Mizzurani plague back to Earth
Sold Earth to the Entrope for harvesting
Retrieved a legendary treasure
Discovered a stowaway before they were caught or fled
Took more than 2 years to get home
Built up an 1000 credit debt with the Glukkata Trade Alliance
Been cargo scanned by every alien empire