Multiple Choice
If we were to send a radio signal to an advanced civilization in 2014 which is located in the Zeta Reticuli star system approximately 39 light years away and the signal was immediately replied to, when would the reply arrive back at Earth?
A) 2092
B) 2039
C) 2053
D) 2014
Correct Answer:

Verified
Correct Answer:
Verified
Q3: What kind of energy does sunlight possess?<br>A)
Q16: Human beings mostly emit which kind of
Q43: The process by which molecules escape from
Q62: According to current definitions, Kuiper belt objects
Q63: In the context of life in the
Q64: Far from the Sun in a spherical
Q66: The strongest piece of evidence that supports
Q69: The fundamental parameters of the Universe are
Q70: The technique of collecting radiation and splitting
Q79: According to the nebular theory, as an