I found some free astronomy courses on
www.edx.org just type in Astronomy in the search field.
EDX is a free online educational platform that delivers courses from around the world on different subjects. You can pay if you want to recieve the certificates, but free otherwise.
I enrolled myself in the "Introduction to Solar Systems " which starts 13 March.
There are many others to choose from, but require an account to be registered (free).
Hope the other beginners here find this useful.