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