I have had a love for astronomy when I was a child. Today, I am well on my way toward becoming an engineer (Mech). I would like to find out how much of a common thing is it for engineers to go work for astronomical societies/research institutes/ observatories doing any kind of engineering work..maybe designing new instruments, optics, designing new observatories or anything else related. And i'm talking about working directly for them rather than working for an engineering company whose contracted to do design work. I've also thought about the possiblity of doing PhD studies in astrophysics with my developing CFD background. Any thoughts on that? Would there be an easy transition? Many opportunities?