Elisabetta Dami
United States. General Accounting Office
Isaac Asimov
幸村誠 (Makoto Yukimura)
Matteo Madi
N. N. Smirnov
James T. Visentine
Joerg Bendisch
Brian Herbert
George T. Hacket
Antony Milne
Buffy Silverman
Karen Romano Young
Donald J. Kessler
Nicholas L. Johnson
Joseph N. Pelton
ESA Space Debris Working Group.
James L. Crafts
Alice Gorman
William P. Schonberg