Astronomy with a radio telescope was initiated by
A) the British Broadcasting Corporation in England.
B) Marconi in Europe.
C) the National Radio Astronomical Observatories of the United States, with the support of the National Science Foundation and the American Astronomical Society.
D) an amateur astronomer, Grote Reber, after Jansky had detected radio energy from the Galaxy.
Correct Answer:
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Q1: Astronomers initially had difficulty identifying the emission
Q2: The energy output per second of a
Q3: The energy output per second of a
Q4: Cygnus A, a strong radio source, is
Q5: What is the MOST outstanding feature of
Q7: Quasars typically appear to be
A) extremely massive
Q8: One of the first three astronomical objects
Q9: The emission lines in quasar spectra were
Q10: Redshifts revealed the radio source Cygnus A
Q11: Most quasi-stellar objects (QSOs) produce their strongest
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