Here is the full list of all 25 Heavenly Bodies achievements.
Plant a navigation flag into an asteroid.
Recover from a near-death experience.
Eject a gardening tool via the disposal chute.
Film yourself with the film camera.
Find all the mission collectables.
Complete all challenges in Evacuation.
Bring the trophy to the escape pod during Evacuation.
Complete all challenges in Energy.
Complete all challenges in Oxygen.
Complete all challenges in Minerals.
Complete all challenges in Vision.
Get into the telescope assembly bay.
Complete all challenges in Data.
Safely perform an airlock decompression sequence.
Complete all challenges in Sunlight.
Complete Evacuation.
Complete Energy.
Complete Oxygen.
Complete Minerals.
Complete Vision.
Complete Data.
Complete Sunlight.
Complete any level in Newtonian mode.
Cause an explosive decompression from the airlock.
Board the space station.