Welcome to your What do you know about the SETI program?
The main field of SETI's activity is:
The contradiction between the fact that there must be some kind of life in the Universe except the terrestrials, and the fact that for some reason we do not see it, is called:
What does the Drake equation cover?
Initiated in 1960 by Frank Drake, the Ozma experiment was aimed at finding signals that could come from two stars: