Nasa have vandalised the moon, leaving rubbish all over the place. THAT IS OUR PROPERTY!
PROTECT YOUR PROPERTY THEN
seriously though, do you think they're going to keep at it until they find water? cos if they do, the moon's just going to keep getting smaller and smaller and eventually they'll upset the balance and earth's gravity will pull the moon harder and harder until it collides and KILLS US ALL D;
... or maybe i'm just over-thinking this.