Fast moving UFO with 90 degree right turn around Scottsbluff, NEI was driving home from Wyoming to Western Nebraska at about 10:15PM Mountain time. A bright light, about the size of a bright star moved quickly across the sky from west to east. I was driving east on Highway US 26. The object caught my eye when I noticed it through the front windshield.It looked like a satellite, only moving much, much faster, and brighter. After moving almost towards the eastern horizon, the light stopped for a split second, then made a roughly 90 degree turn to the right, and sped off very fast to the south and disappeared from view on the southern horizon (or at least behind one of the many large rock features that are around the area).There was a full moon outside, and most of the visible stars in the sky were obscured by moonlight. The light was VERY bright, white in color with an almost slight green hue. The sky at the time of the event was clear, although we did have some rain earlier in the evening.The entire event took about 10 seconds (seemed much longer).I am highly educated (Doctoral degree), and work in public service. I was completely sober, and was wide awake and aware.As a side note, I felt right after the sighting a "butterflies in the stomach feeling," and felt a feeling akin to the object knew that I observed it. I can't explain the feeling in words that properly describe the emotional experience. Again, very, very strange. I have never experienced anything like this before, and frankly, I found fascinating, exciting and disturbing. Especially once I had some time to digest what happened.I felt compelled to make a report. Unfortunately, I didn't get a photo or video. The experience simply happened to fast to get my phone out of my pocket... In the future, I am going to have my phone out and in the cup holder! -grin-