I had the same question before. I do always wonder what's above us, those things circling, spinning and moving above our heads, what made them? I never asked who, but what. This question I always ask to some of my drinking buddies back then. I ask them when they got drunk, just to be a little bit serious.

But last year was the last time that I asked about it, the answer came from an old man who's my neighbor, and I'm satisfied with his answer. He's an archeologist, retired university professor and a psychologist.

I asked him, what made the entire universe? His answer was:

"If you find an idle and empty land, what will you do to it? There is no way you can sell it because everybody owns it."

What's the connection of your answer with my question, I asked.

"The empty space is already there before the first sentient being became conscious with its surrounding, it might have question its existence, just like us, and it filled the empty space around us."

I do find his theory related to the creation myth of Buddhism, but his answer gave me the satisfaction.