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