Well,
@arkitect has put this in (my) mind after an exchange earlier this afternoon: So, Vangelis, it is, and several tracks - mostly from Cosmos (oh, yes, I loved that series - I remember pacing the living room with a repressed and savage excitement after each episode when it was on in the early 80s - I couldn't talk about it to anyone - and I
adored the soundtrack).
Another brilliant - and haunting - track of his is "Fields of Coral". And the terrific "Intergalactic Radio Station" which - as it happens - is just now playing as I write.
Actually, this was more than "study music": On my flight(s) home, when I was working in central Asia, - on leave - sometimes, I would play hours of Vangelis in the plane (on my trusty iPod classic - 120GB - with my Bowers & Wilkins P5s, - they both accompanied me everywhere, stashed in my briefcase, and still do - a superb combination)......it worked, wonderfully.
Listening to Vangelis while passing over - or, crossing - the Caspian Sea (which takes thirty minutes to cross by air - astonishing) is an awesome and humbling and stunning experience.