I, along with my ex-wife and two friends from my same street were seated on the home team side of the stadium app. half way up facing east. During the Halftime Home coming events on the field I witnessed a 2 foot diameter orb traveling horizontally from north to south over the field. The object was not like the 2 dimensional translucent orbs seen in most pictures after development. This object was a solid 3d Sphere, not a light. Its color was a bluish green. It was traveling between 80 and 100 mph. The entire sighting lasted a little over 2 seconds. It traveled over the eastern hatch marks on the field and was slightly lower than the Field Lights. Nearly ever person was focused on the Homecoming court down on the field. Upon seeing the orb I immediately notified my friends. Two of the three were able to see the orb before it rapidly faded out of site. The object had very sharp defining edges no blurs or fuzziness, the inside seemed to be made of plasma, it was not extremely bright and flew in a perfectly strait and flat trajectory. The most interesting part of the story came later.