UFO Paper/Lecture:

“A SCIENTIFIC ANALYSIS OF THE VIDEOTAPE TAKEN BY SPACE SHUTTLE DISCOVERY ON SHUTTLE FLIGHT STS-48” by Jack Kasher, Ph.D.

(NICAP.org)

The STS-48 UFO incident occurred on 15 September 1991, at around 8:30 p.m. GMT:

http://www.nicap.org/muj_kasher_sts48.htm

(youtube.com image)