it was a bright green square light that moved with incredible speed and changed direction in straight linesi was riding in a friends truck going north from jacksonville il when i seen a bright green light that was square. it made a check mark line before it shot in a straight line not quite parrellel with the harizon. my friend and i both seen it.we were on the interstate so im not sure where we were. the light was at least a mile or more away and was still large in size. i would approximate its size to be maybe 50-80 yards in a square shape((NUFORC Note: Source of report indicates that the date of the incident is approximate. PD))