Blue UFO Over ASU West

I first witnessed a blue light moving around in the sky off to the northwest.  It moved around like a RC Helicoper (sort of wobbley).  Then my two brothers and a friend came out and they saw it as well and had the same opinion.  It kept moving down in the same part of the sky and then back up.  It would move to the west and then back to the same spot where it would raise and decend.  Then it just appeared in the sky high above were it decended and disappeared.  Then about midnight I was driving home with my brother and we both saw this thing moving back and forth changing shape.  It was over the ASU West parking lot at 43Ave and Thunderbird.  I was driving so I could only take side glances at it while driving.  It looked sort of like someone was flying a two cord kite that had a bright blue 400W light attached to it (if this was a hoax or someone who had a bizare hobbie of flying kits at night).  It seemed to change shape while it moved back and forth.  I ju! st wondered if anyone else saw this wierd blue light over ASU West?