Here is the full list of all 94 Hextones: Spacetime achievements.
Connected 3 Sides by Color - Tier 7
Connected 1 Side by Color - Tier 7
Connected 2s Side by Symbol - Tier 7
Connected 1 Side by Symbol - Tier 7
Connected 5 Sides by Symbol - Tier 6
Connected 4 Sides by Symbol - Tier 6
Connected 3 Sides by Color - Tier 6
Connected 6 Sides by Symbol - Tier 6
Connected 1 Side by Color - Tier 6
Connected 1 Side by Symbol - Tier 6
Connected 2 Sides by Symbol - Tier 6
Connected 3 Sides by Symbol - Tier 5
Connected 6 Sides by Symbol - Tier 5
Connected 5 Sides by Symbol - Tier 5
Connected 4 Sides by Symbol - Tier 5
Connected 2 Sides by Symbol - Tier 5
Connected 1 Side by Color - Tier 5
Connected 1 Side by Symbol - Tier 5
Connected 4 Sides by Symbol - Tier 4
Connected 1 Side by Color - Tier 4
Connected 6 Sides by Symbol - Tier 4
Connected 1 Side by Symbol - Tier 4
Connected 2 Sides by Symbol - Tier 4
Connected 4 Sides by Symbol - Tier 3
Connected 3 Sides by Symbol - Tier 3
Connected 5 Sides by Symbol - Tier 3
Connected 1 Side by Color - Tier 3
Connected 6 Sides by Symbol - Tier 3
Connected 1 Side by Symbol - Tier 3
Connected 2 Sides by Symbol - Tier 3
Connected 5 Sides by Symbol - Tier 2
Connected 4 Sides by Symbol - Tier 2
Connected 6 Sides by Symbol - Tier 2
Connected 3 Sides by Symbol - Tier 2
Connected 2 Sides by Symbol - Tier 2
Connected 1 Side by Symbol - Tier 2
Connected 3 Sides by Symbol - Tier 1
Connected 5 Sides by Symbol - Tier 1
Connected 4 Sides by Symbol - Tier 1
Connected 6 Sides by Symbol - Tier 1
Connected 2 Sides by Symbol - Tier 1
Connected 1 Side by Color - Tier 1
Connected 1 Side by Symbol - Tier 1
Connected 2 Sides by Color - Tier 1
Connected 3 Sides by Color - Tier 1
Connected 4 Sides by Color - Tier 1
Connected 5 Sides by Color - Tier 1
Connected 6 Sides by Color - Tier 1
Connected 1 Side by Color - Tier 2
Connected 2 Sides by Color - Tier 2
Connected 3 Sides by Color - Tier 2
Connected 4 Sides by Color - Tier 2
Connected 5 Sides by Color - Tier 2
Connected 6 Sides by Color - Tier 2
Connected 2 Sides by Color - Tier 3
Connected 3 Sides by Color - Tier 3
Connected 4 Sides by Color - Tier 3
Connected 5 Sides by Color - Tier 3
Connected 6 Sides by Color - Tier 3
Connected 2 Sides by Color - Tier 4
Connected 3 Side by Color - Tier 4
Connected 4 Sides by Color - Tier 4
Connected 5 Sides by Color - Tier 4
Connected 6 Sides by Color - Tier 4
Connected 2 Sides by Color - Tier 5
Connected 3 Side by Color - Tier 5
Connected 4 Sides by Color - Tier 5
Connected 5 Sides by Color - Tier 5
Connected 6 Sides by Color - Tier 5
Connected 2 Sides by Color - Tier 6
Connected 4 Sides by Color - Tier 6
Connected 5 Sides by Color - Tier 6
Connected 6 Sides by Color - Tier 6
Connected 3 Sides by Symbol - Tier 4
Connected 5 Sides by Symbol - Tier 4
Connected 3 Sides by Symbol - Tier 6
Connected 2 Sides by Color - Tier 7
Connected 4 Sides by Color - Tier 7
Connected 5 Sides by Color - Tier 7
Connected 6 Sides by Color - Tier 7
Connected 3 Sides by Symbol - Tier 7
Connected 4 Sides by Symbol - Tier 7
Connected 5 Sides by Symbol - Tier 7
Connected 6 Sides by Symbol - Tier 7
You found the Sun star in the Milky Way
You found the Alpha Centauri star in the Centaurus constellation
You found the Sirius A star in the Canis Major constellation
You found the Pollux star in the Gemini constellation
You found the Arcturus star in the Boötes constellation
You found the Aldebaran star in the Taurus constellation
You found the Rigel star in the Orion constellation
You found the Antares star in the Scorpius constellation
You found the Betelgeuse star in the Orion constellation
You found the VY Canis Majoris star in the Canis Major constellation