28 minutes for 1.3 quadrillion, a lot of clicking though. Little over 5,000 clicks (forgot the exact number since switching back to this page lol)
This is a really well made little game for what it is. Especially since I see you mentioned on the page it was made in Scratch! The UI is nice and responsive, sounds are good, balance is pretty good, etc.
There is definitely a lot of clicking at points, but I guess that's the nature of it huh. I guess it'd be cool if it matched the theme a bit better too (even just naming the planets like Earth-160, Earth-807128, Earth-65, maybe?), but yeah this is a really nice little game!