Been there, done that
Found 50% of all discoveries
Completed the Odyssey
Completed the Odyssey without using shortcuts
Completed the Voyage
Completed the Voyage without using shortcuts
Completed the Endeavor
Followed a sign to a secret solar system
Cracked open an asteroid to reveal the goodies inside
Repaired a space probe and drained energy from it
Started a fashion trend
Defended yourself using M.A.D.
Successfully scanned a sun without taking damage
Discovered all aliens and fossils
Finished Odyssey in less than 20 in-game minutes without starting from a shortcut
Traveled through a wormhole to get holes in your teeth
Found three potted plants and traveled to a secret world
Crash landed a space station using its thrusters. No harm no foul.
Explore the interior of a space station
Disconnected a space station battery and used its power
Found the home world of the galaxy caretakers
Established communication with a Blob commander
Fell out of bounds with the astronaut