Oh wow so they have added space planes now then?
So it it possible to build a spaceplane then have a shuttle on the back of it that goes off to the moon?
Also is it possible to land on the moon properly now with stock parts without exploding?
Yes, Yes, an Yes!
However there is still many know bugs with KSP.15!
Please find a list of many know bugs @ http://kerbalspaceprogram.com/forum/index.php?topic=12348.0
KSP 15.1 is in Development, concurrently with KSP.16.
Version 15.1 is expected too release within days, pending Testing..
PS: one of the majour advantages, of rockets + aircraft, is been able too launch a rocket from the belly or back of a plane!
We strongly recommend using a joystick, when trying too fly!