After having spent the last hour trying to deal with every demand from the building it still will not have a dupe man it to do research. I cleared the area around it, built it in space, supplied it with over 300kg of oxygen, plenty of glass available, I have a tenured scientist, what else does it need?
EDIT: I found out that the telescope does not work when the oxygen is supplied in batches, it will give the "empty pipe" error. It can be fixed by installing a valve and constantly allowing a small packet (1g) of oxygen to be supplied.
Build a telescope, supply the oxygen in batches instead of continuously.