I guys, so I start playing ksp for 2 weeks now and since 1.0 came out the main project i had was to lunch some satellite on the mun to spot some ore... so yesterday I launch it and when I finally was in orbite using the scan and everything, I went in the space center then I came back and poof! no more satellite only one piece left that is stick in space without moving. You can imagine that I was upset. So today i tried it around kerbin. everything was fine until I tried space center then same problem. The problem is my space station around kerbin is fine and didn't made this problem. I put some pictures to show you: first one is the satellite around kerbin everything is fine second is the orbite i made third is when i come back from space center fourth and fifth from space center shows that it still moving (altitude change from 173,805m to 173,792m) http://imgur.com/a/Lwnw4 So if anyone have an idea to help your welcome. finally my english isn't perfect so forgive me I tried to be as much clear as I can.