Woman called to report that she had been driving west on an east-west runninbg highway with her daughter (age 9 yrs.), when they both noticed an "aircraft" with 3x blinking lights on it, located about 1 mile east of the town of Clatonia. The light on the "south part" of the craft was blue, the light on the bottom was very bright red, and the light on the north side was white. The caller stopped her car before she passed underneath it, rolled her window down, and looked up at it. She heard nothing, no sound whatever. She then drove on to the next intersection, turned her car around, hoping to see whether the object had left. It was then that she and her daughter witnessed a second object near the first, then a third and a fourth on the opposite side of the highway from the first, and very low to the ground. Even though there was low ground fog, they could see the objects distinctly. They saw a fifth object shortly afterward, at which point they decided to drive into town. As they drove toward Clatonia, they saw another object come out of the fog. She called Columbus, NE, airport, where she learned that they had had no aircraft in the area at that time. They also told her that they had a radar "shadow" in the area where her sighting had taken place