Blue fireball travels across the horizonI left work at 730 pm and drive to the hockey arena to pick up my daughter and son.My other daughter and husband were staying at the arena for her game and I was picking up my 13 and 2 year old to take them home. I sent my husband a text to tell him that I was outside and to send the kids out to the parking lot. I had pulled in front of the building. My daughter came out carrying my son. I was watching them out the window of the passenger side door. When I noticed my son didn't have a hat on I looked forward toward the dash of the truck to check the thermometer for the outside temp. In my peripheral vision I saw what I thought was a shooting star. I locked my sight on it. It didn't burn out as expected. I actually got bigger as it got closer. When the object was directly in front of my field of Vision I could see that it was the size of the biggest full moon you have ever seen. Like the harvest moon. The color was blue. In the center it was darker blue then lighter blue then white on the parameter if the object. A trail or tail followed the object. It filled the horizon. It travelled diagonal in front of me and disappeared under the tree line. I heard no noise or felt nothing. My daughter was buckling my son in his carseat and there was no one else in the parking lot to share it with. I know that someone else in the city had to have seen it.