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