Multiple lights appeard in sky East of Big Spring Texas.While traveling from Louisiana to Tucson AZ, we were on I-20 just outside of Big Spring Texas. It was just after the sun went down. Lights began to appear around the cloudless sunset. The sizes varied. The objects looked like a straight line allmost like a vapor trail except the trails didn't change length. Instead, they moved and altered positions but 45 and 90 degrees at a time. It started with one and eventually there were 6 in the sky. All of them were ti the EAST of our position. There are some pictures as well as video recorded on Hi 8.Pictures upon request.((NUFORC Note: We will request photos from the witness, but we suspect they may be contrails, reflecting light from the setting Sun. PD))