It was blue flame, like gas burning. It flew over the highway in front of me. It puffed out with what looked like welders spark about 20ft above the ground between my car and a silhouette of a house that was about a half city block away. I think it was just beyond the road ditch into the field. It had to be as least as big as my hatchback door on my Toyota Matrix. It was so fast I wasn't sure at first what I saw. My dad said saw something like it in the badlands of SD in his youth. People said it was a icemeteor.?