Our Textbook Discusses That Radio Astronomers Are Building More and More

Multiple Choice

Our textbook discusses that radio astronomers are building more and more arrays of radio telescopes, where many "dishes" are connected together. What advantage do such arrays have?

A) they can look through clouds in the Earth's atmosphere, which individual dishes can't do
B) they can allow us to split the radio waves into a spectrum, which individual dishes can't
C) they provide a higher resolution than individual dishes
D) they can be built on flat ground, while individual dishes have to built on very tall mountains
E) none of the above
Section 6.5: Observations Outside the Earth's Atmosphere