What is the current state of the search for extraterrestrial radio communications?
A) Several extraterrestrial civilizations have been found, but they are not intelligent enough for us to bother with and the search is continuing.
B) Occasional single-frequency searches have been made for extraterrestrial signals, but funds are still being sought for the first major continuous monitoring effort.
C) A number of frequencies in the "water hole" are being monitored, but there has been no major effort as yet to send out continuous signals from Earth at these frequencies.
D) Continuous transmissions are being sent out from Earth at several frequencies in the "water hole," and tens of millions of other frequencies are being monitored.
Correct Answer:
Verified
Q49: In the Drake equation for estimating the
Q50: The so-called water hole,a region of the
Q51: The so-called water hole is a range
Q53: Most searches of space for evidence of
Q54: The Drake equation attempts to predict the
A)
Q55: One of the "quiet" bands in the
Q56: What strategies and electromagnetic frequencies are thought
Q57: Probably the MOST difficult factor to estimate
Q58: Why would intelligent alien beings wanting to
Q59: Part of determining the Drake factor R*
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