Speaking of which: a few years ago there was quite awesome astronomy course, which I didn't have time to finish in real-time, and the content was deleted as soon as the course ended. I liked it wa-ay better than any other astronomy-ish stuff they had (and still have) later: it was more about actually modelling the celestial sphere and understanding the movement of the planets, than vaguely speaking about contents of the universe. Does by any chance anyone know how I can try and find it somewhere else? All I remember is that the professor had long gray hair and beard, which isn't really google-able.

I took that course and I really enjoyed it. That's why, I downloaded it and uploaded it to drive when I heard that coursera is gonna delete it. Here's the link: https://drive.google.com/open?id=0B64NfOIwa64BVFJXQzNhTDM3ND... Keep looking up :D

you're probably thinking of "Introduction to Astronomy" by Ronen Plesser. that course was awesome.

Yes, thank you very much. That's exactly it!

Yup, in 20 days when the content becomes unavailable, people will trade them like they trade... well, pretty much anything that they can't get easily by following the law.