We search for intelligent life in the universe by
A) sending out spacecraft with messages on them.
B) using radio telescopes to search for radio signals.
C) monitoring ultraviolet radiation emitted by stars.
D) All of the above

Question

Quizplus · Accepted Answer

Radio telescopes are commonly used to search for radio signals from intelligent extraterrestrial sources, as radio waves can travel vast distances across space.

We Search for Intelligent Life in the Universe by