9,24,07 A huge dark gray object in the clear blue sky at 100miles altitude travelling at 50,00o MPH to the SE,no sound,no orbitI was watching a turkey vulture circle overhead at about 3500 ft. Commercial Jets were flying overhead at 35,000 ft. Suddenly a very high altitude massive object appeared above and beyond the bird at maybe 50 to 100 miles elevation, barely visible against the blue sky. It traveled 20 deg. of ard in 3 sec. I believe this object was not in orbit, otherwise others would have seen it. I sensed that it came into view from outer space, then returned to outer space beyond view. This viewing has been very traumatic for me since I have been a sceptic all my life. I now sense that we are not alone I am a retired scientist from the LANL, and also have USAF aircraft experience.