Related Clues:
- 'A pig might fly, given so much time (3)'
- Thousands of generations
- "___ Flux" (animated sci-fi series)
- George is here on time
- '___ Flux' (former MTV series)
- Lunch ending
- Longest division of time, in geology
- Large timeline segment
- Astronomical stretch
- '___ Flux' (1990s animated series)
- Long, long, long time period
- Vast span
- Giga-year
- A billion years, in astronomy
- 10 million centuries