Quiz · The Great Silence

Question 1What is the main idea of this listening passage?

Radio telescopes are too old to be useful The search for signals from other civilisations has so far found only silence Volunteers have found a repeating pulse from space Scientists have given up looking for life in space

Question 2What would a single confirmed signal do, according to the speaker?

End the need for large radio telescopes Prove that most stars have no planets Transform human philosophy and religion overnight Force governments to close the search programme

Question 3What do some thinkers suspect about advanced civilisations?

They may destroy themselves before they can call out They have already visited the Earth secretly They only use light instead of radio signals They are hiding from newer civilisations like ours