[FPSPACE] RE: SETI public: Search for Extraterrestrial Visitation (SETV): A Scientific Search for Visitation From Extraterrestrial Probes

[CHARLES, JOHN B. (JSC-SF2)]

Slightly OT, but does anyone remember Duncan Lunan and his hypothesis that
an extraterrestrial probe in orbit around the Sun communicated briefly by
delayed-echoing of Earthly radio transmissions?  I read his article in
Analog many years ago.  Seems like he has made an occasional return to
public print with the same or modified ideas.

Question: How might we recognize an alien artifact?  Maybe one of the
Earth-crossing asteroids?  Maybe 2000SG34 (if that is the right number?)
isn't an Apollo S-4B or even Luna-16's Blok-D (there--back on topic!) but a
visitor.

John Charles
Houston, Texas