I'm watching a MSNBC commentary about Syria war and @6:02 where a guest says:
That's a galaxy question
What's the meaning of galaxy question? Does it mean the question is off-topic? Or it mean it's a big problem that is hard to be answered?
Note: The video contains opinions about the conflict in Syria. I am only interested in the English. Please do not click the link if you don't want to hear about the topic.