I was just wondering what the biggest moons people have seen are the highest I have ever seen is 9,564

My biggest is 9824, I saw a 9914 before though, I THINK someone got a 10k

i have seen a couple of 10Ks ..

there are actually 10k's in game? surely that must be a bug... according to any moon calculator even in infinite amount of death stars have a 0% chance to destroy a 10km...

Nothing suggests it is a bug. Just indestructable and a free pass to bragging rights over anyone else in the game. I think people are gonna need them when the top fleeters get enough RIPs to pop every moon there is.

i agree if 10k moon are indestructable it would be really sweet cause the top player can easily blow up all the moon in one day. sometime they will blow them up if the moon size around 8-9k. it happen to me >.<.