A reply from Earth?
An approach is proposed to developing a message from Humankind to extraterrestrial intelligence if we detect it.
Michaud
M A
MA
American Embassy (SCI), Paris, France.
Billingham
J
J
Tarter
J
J
D001256:Astronomy / Q000639:trends; D003142:Communication; D018534:Earth, Planet; D018559:Exobiology / Q000639:trends*; D005118:Extraterrestrial Environment; D005544:Forecasting; D006801:Humans; D007391:International Cooperation; D016134:Organizational Policy; D011050:Policy Making; D014480:United Nations