What wavelengths are used in current searches for extraterrestrial intelligence by radio telescopes?
A) wavelengths that are longer than the local wavelengths emitted by the Earth's atmosphere
B) wavelengths that are longer than the radio wavelength "noise" naturally emitted by our galaxy
C) the same wavelengths that are used on Earth for TV signals
D) wavelengths with the greatest speeds
Correct Answer:
Verified
Q5: The most likely region of the radio
Q11: Which of the following is used by
Q14: Why do some scientists think that the
Q23: The portion of the electromagnetic spectrum between
Q33: Why do scientists consider it to be
Q35: What is the most important reason why
Q36: The New Horizons spacecraft travels at about
Q39: All of the terms in the Drake
Q42: Which of the following limits the number
Q43: The sudden increase in complexity of life
Unlock this Answer For Free Now!
View this answer and more for free by performing one of the following actions
Scan the QR code to install the App and get 2 free unlocks
Unlock quizzes for free by uploading documents