Was launching on runway, but there was a bunch of debris on it. Plane crashed on runway due to debris, then I switched to space center and the game crashed.

Log:
http://pastebin.com/Ly48uF6w

Happened again with 4c53431

Was spectating a huge ship, which was landed and stopped. Pressed Space Center, crash log:
http://pastebin.com/HG3TbYcz

If we run into this still, reopen this. I haven't seen KSP crash on my box for quite a while, but it's definitely still a possiblity ;)