Hi guys, first post, many questions. I'm a giant newb, I've got Mechjeb and I'm able to get stuff into orbit and dock ships and, well, that's about it. My current stumbling block is trying to get something bigger into play. Some problems I've faced: 1. If I have a station set up (usually a cylinder atop the rocket) I tend to find that the rocket blows up. Usually one of the connections, typically the one connecting the rear engine of the station, gives out, and boom. I'm wondering if I am accelerating too hard, or if the weight of the station itself is the problem? 2. Is there any mileage in a piggy-back launch like the Space Shuttle, or is that a dead end? A huge number of Kerbals have died in my experiments with this method of launch. I feel bad. But is there something in it? Typically I find that either I lose control of the rocket and it tips over, or if I put a buttload of power into the first stage to offset it then it just tears itself up. Is there a solution? 3. Are there any general things I should be aware of when looking at the Centre of Mass, Centre of Thrust and Centre of Lift? Do I just want to keep them all near the bottom? 4. If I want to build an interplanetary ship in space, do I effectively have to dock all the parts together or are there other ways? Docking links have a bad habit of snapping on me when I've fired up engines. I don't want to get ahead of myself, but I am basically fishing to build an orbital hub station (working name Gas And Gulp) and also put together some sort of huge roving colony craft. I like the idea of a ship that can essentially visit all the different planets without having to return home (though it will get getting resupply runs from Kerbal along the way). Any help much appreciated. Also on a completely unrelated matter, is there a way to tell Mechjeb I want to go to the moon? Sort of baffled by that. I know it's not related but it's been bugging me.