Related Clues:
- The ''N'' in TNT
- Dodge SUV model
- An ordered system in a disco's most unusual!
- All in order?
- A favourite of 'Gardeners World'
- Many large moons oddly observed in the universe
- Universe as an ordered system
- The universe - a daisy
- Universe as an ordered whole
- Part of 42-Across
- Universe seen as a whole
- Carl Sagan topic
- Marvel supervillain
- Carl Sagan's fascination
- Dynamite ingredient, for short