Couple Sight Blue Glowing Object That Moved in "Spurts" While Driving East Near Twin Falls, Idaho

Location of Sighting

Date of Sighting: September 30, 2005
Time of Sighting: 9:00 PM PDT
Duration of Sighting: About 10 Seconds
Date Reported: October 4, 2005
Location of Sighting: Glenns Ferry, Idaho (About 50 Miles Northwest of Twin Falls, Idaho)
Latitude: 42.963 Degrees N
Longitude: 115.317 Degrees W
Number of Witnesses: Two
Number Interviewed: One
Weather: Clear Skies

Description (in Witness's Own Words): My girlfriend and I were driving from Boise ID to Logan UT. We were heading east bound on I84 towards Twin falls. We were traveling a bit over 75 mph, and our location was most likely around the Glenns Ferry area. My girlfriend was driving and she noticed it first. She said: "Hey look at that." It was on the passenger side positioned about 10 o'clock. She said something about satellite, I was staring and it didn't move like a satellite. We both agreed the color was odd. It was a very bright glowing blue. It was pulsating but not flashing. It seemed too low to be a satellite, and I've never seen an airplane move in spurts like this object did. The total time was maybe 10 seconds from when we first noticed it. Its flight path was straight, then swooping, pausing, and finally ascending very straight and quick which it changed from blue to a flash of white line. I was wondering if there were any other calls or sightings during that time, and in the area? There were a lot of cars around us.

Investigator's Notes: This sighting can't be explained away as a satellite or as an astronomical phenomenon.  The witness has provided a very concise report.  At this time I have no explanation for the witnesses observed.  One would think that many other people saw the same phenomenon given that the witness stated that many cars were in the area.