Dear Satellite Observers, I have two questions. Question 1: Does a re-entering spacecraft like the Space Shuttle "flash" initially upon re-entry into earth's atmosphere or would there just be a slowly building incandescence? Question 2: I am looking for visual ways to distinguish natural meteoric fireballs from re-entering man-made debris fireballs. Does anyone know references for this information? Thank you. Tom Ashcraft 72632.1427@compuserve.com New Mexico