One of the first three astronomical objects detected at radio wavelengths by Grote Reber in the late 1930s was
A) Jupiter.
B) the Sun.
C) the galactic center.
D) the Moon.
Correct Answer:
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Q3: The energy output per second of a
Q4: Cygnus A, a strong radio source, is
Q5: What is the MOST outstanding feature of
Q6: Astronomy with a radio telescope was initiated
Q7: Quasars typically appear to be
A) extremely massive
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
Q12: The discovery of the peculiar galaxy Cygnus
Q13: Quasars were originally thought to be stars
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